Planting calendar for Honolulu, Hawaii

Dates from 30 years of records at the Waikiki 717.2 weather station, 3.6 miles from Honolulu, worked out crop by crop with the same method as the Year Round Garden app.

Honolulu at a glance

Weather station: Waikiki 717.2 · 3.6 mi
Frost: Rare (fewer than 1 year in 10)
Hottest month: August: highs 88°F, nights 75°F
Coldest month: January: highs 80°F, nights 66°F
Rain: 21 in. a year, most in March, November and December

What shapes the seasons here

Frost is rare in Honolulu: freezing nights come less than 1 year in 10. Here heat and summer rain set the planting seasons instead of frost, and fall through spring is the main vegetable season.

Summer nights average 75°F in August. Above about 75°F, tomatoes and peppers stop setting fruit, so the best tomato planting here is Sep 9–Mar 10, timed so plants fruit before or after the hottest weeks.

Honolulu gets about 21 inches of rain a year, most of it in March, November and December.

139 of the 174 crops in the app grow here; 35 need a different climate (listed near the bottom).

When to plant the most popular crops

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Tomato (slicing)

Tomato (cherry & grape)

Pepper (sweet / bell)

Pepper (hot / chili)

Eggplant

Cucumber (slicing)

Summer squash & zucchini

Watermelon

Bean (bush snap)

Sweet corn

Okra

Sweet potato

Potato

Lettuce (leaf & mesclun)

Kale

Collard greens

Cabbage

Carrot

Radish

Onion (bulbing)

Basil

Strawberry

Best Can plant Start indoors

Get these dates as reminders for your exact yard

The free Year Round Garden app uses the weather station nearest your own address, not just the city. It reminds you when to start seeds, plant and harvest, sends frost and storm alerts from the National Weather Service, and keeps a garden journal. No account needed, in English and Spanish.

Download on the App Store Free for up to 5 plants on iPhone and Android.

What to plant in Honolulu, month by month

January101

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Beet, Bitter melon, Cabbage, Carrot, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Garden cress, Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Mustard greens, Napa / Chinese cabbage, New Zealand spinach, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Radish, Shallot, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Turnip, Watercress, Winter melon / wax gourd, Winter squash

Herbs: Anise hyssop, Basil, Bay laurel, Borage, Catnip, Chamomile, Chives, Cuban oregano, Dill, Epazote, Fenugreek (methi), Feverfew, Garlic chives, Lavender, Lemon balm, Lemon verbena, Marjoram, Mint, Oregano, Papalo, Parsley, Rosemary, Sage, Shiso (perilla), Sorrel (French / garden), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory

Fruit: Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon

Flowers: Annual salvia, Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Nasturtium, Statice, Strawflower, Sunflower, Sweet alyssum, Zinnia

Can also plant

Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Chickpea / garbanzo, Ginger, Leek, Luffa gourd, Malabar spinach, Moringa, Okinawa spinach, Okra, Parsnip, Seminole pumpkin / calabaza, Southern pea / cowpea, Sweet potato, Taro (dasheen), Yardlong bean, Caraway, Culantro, Lemongrass, Lovage, Tarragon (French), Banana, Papaya, Celosia, Pentas (Egyptian star cluster)

Start seeds indoors

Eggplant, Ginger, Malabar spinach, Pepper (sweet / bell), Sweet potato, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Garlic chives, Lemon balm, Marjoram, Oregano, Sage, Shiso (perilla), Winter savory, Cucamelon / mouse melon, Ground cherry, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster)

February77

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Garden cress, Green onion / scallion, Mustard greens, New Zealand spinach, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Radish, Seminole pumpkin / calabaza, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter melon / wax gourd, Winter squash

Herbs: Anise hyssop, Basil, Bay laurel, Borage, Catnip, Chives, Cuban oregano, Epazote, Fenugreek (methi), Garlic chives, Lemon balm, Lemon verbena, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory

Fruit: Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon

Flowers: Annual salvia, Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Sunflower, Zinnia

Can also plant

Beet, Bottle gourd / cucuzza, Carrot, Cassava (yuca), Chaya (tree spinach), Chinese broccoli (gai lan), Collard greens, Ginger, Kale, Komatsuna (mustard spinach), Luffa gourd, Malabar spinach, Moringa, Okinawa spinach, Okra, Shallot, Sweet potato, Taro (dasheen), Watercress, Yardlong bean, Caraway, Culantro, Dill, Feverfew, Lavender, Lemongrass, Parsley, Sorrel (French / garden), Tarragon (French), Banana, Papaya, Calendula, Celosia, Nasturtium, Pentas (Egyptian star cluster), Statice, Strawflower, Sweet alyssum

Start seeds indoors

Ginger, Malabar spinach, Sweet potato, Basil, Shiso (perilla), Cucamelon / mouse melon, Celosia, Pentas (Egyptian star cluster)

March61

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Ginger, Green onion / scallion, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okinawa spinach, Okra, Pepper (sweet / bell), Purslane, Seminole pumpkin / calabaza, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Tomato (cherry & grape), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Yardlong bean

Herbs: Basil, Catnip, Cuban oregano, Culantro, Epazote, Lemon balm, Lemon verbena, Lemongrass, Mint, Papalo, Shiso (perilla), Summer savory, Vietnamese coriander (rau ram), Winter savory

Fruit: Cantaloupe & melons, Cucamelon / mouse melon, Ground cherry, Watermelon

Flowers: Annual salvia, Celosia, Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Sunflower, Zinnia

Can also plant

Bean (dry / shelling), Collard greens, Jicama, Komatsuna (mustard spinach), Peanut, Pepper (hot / chili), Pigeon pea, Popcorn, Pumpkin, Roselle, Taro (dasheen), Tomatillo, Tomato (early / short-season), Watercress, Winter melon / wax gourd, Winter squash, Anise hyssop, Bay laurel, Borage, Chives, Feverfew, Garlic chives, Lavender, Marjoram, Oregano, Parsley, Rosemary, Sage, Sorrel (French / garden), Stevia, Thyme, Banana, Grape (bunch), Muscadine grape, Papaya, Passion fruit, Pineapple, Black-eyed Susan, Cleome (spider flower), Strawflower

Start seeds indoors

Malabar spinach, Papaya, Pentas (Egyptian star cluster)

April16

Best time to plant

Vegetables: Amaranth greens / callaloo, Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Ginger, Malabar spinach, Moringa, Okinawa spinach, Okra, Southern pea / cowpea, Sweet potato, Yardlong bean

Herbs: Culantro, Lemongrass

Flowers: Celosia, Pentas (Egyptian star cluster)

Can also plant

Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Green onion / scallion, Jicama, Luffa gourd, New Zealand spinach, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Pigeon pea, Popcorn, Pumpkin, Purslane, Roselle, Seminole pumpkin / calabaza, Summer squash & zucchini, Sweet corn, Swiss chard, Taro (dasheen), Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter melon / wax gourd, Winter squash, Anise hyssop, Basil, Bay laurel, Catnip, Chives, Cuban oregano, Epazote, Garlic chives, Lemon balm, Lemon verbena, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory, Banana, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Papaya, Passion fruit, Pineapple, Watermelon, Annual salvia, Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Sunflower, Zinnia

Start seeds indoors

Roselle, Papaya

May8

Best time to plant

Vegetables: Jicama, Okinawa spinach, Pigeon pea, Roselle, Taro (dasheen)

Fruit: Banana, Papaya

Flowers: Pentas (Egyptian star cluster)

Can also plant

Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Ginger, Green onion / scallion, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okra, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Seminole pumpkin / calabaza, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter melon / wax gourd, Winter squash, Yardlong bean, Anise hyssop, Basil, Bay laurel, Catnip, Chives, Cuban oregano, Culantro, Epazote, Garlic chives, Lemon balm, Lemon verbena, Lemongrass, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon, Annual salvia, Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Sunflower, Zinnia

Start seeds indoors

Roselle, Sweet potato, Papaya

June6

Best time to plant

Vegetables: Jicama, Pigeon pea, Roselle, Taro (dasheen)

Fruit: Banana, Papaya

Can also plant

Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Ginger, Green onion / scallion, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okinawa spinach, Okra, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Seminole pumpkin / calabaza, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter melon / wax gourd, Winter squash, Yardlong bean, Anise hyssop, Basil, Bay laurel, Catnip, Chives, Cuban oregano, Culantro, Epazote, Garlic chives, Lemon balm, Lemon verbena, Lemongrass, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon, Annual salvia, Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Sunflower, Zinnia

Start seeds indoors

Ginger, Malabar spinach, Roselle, Sweet potato, Rosemary, Papaya, Passion fruit, Celosia, Pentas (Egyptian star cluster)

July15

Best time to plant

Vegetables: Cassava (yuca), Chaya (tree spinach), Ginger, Jicama, Luffa gourd, Moringa, Pigeon pea, Roselle, Seminole pumpkin / calabaza, Sweet potato, Taro (dasheen)

Herbs: Lemongrass

Fruit: Banana, Papaya

Flowers: Celosia

Can also plant

Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Green onion / scallion, Malabar spinach, New Zealand spinach, Okinawa spinach, Okra, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter melon / wax gourd, Winter squash, Yardlong bean, Anise hyssop, Basil, Bay laurel, Catnip, Chives, Cuban oregano, Culantro, Epazote, Garlic chives, Lemon balm, Lemon verbena, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon, Annual salvia, Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Sunflower, Zinnia

Start seeds indoors

Celeriac (celery root), Celery, Eggplant, Ginger, Malabar spinach, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Sweet potato, Tomatillo, Tomato (heat-set varieties), Tomato (slicing), Anise hyssop, Chives, Garlic chives, Lavender, Marjoram, Oregano, Rosemary, Sage, Thyme, Winter savory, Papaya, Passion fruit, Annual salvia, Celosia, Pentas (Egyptian star cluster)

August23

Best time to plant

Vegetables: Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Ginger, Luffa gourd, Malabar spinach, Moringa, Okinawa spinach, Okra, Peanut, Seminole pumpkin / calabaza, Southern pea / cowpea, Sweet potato, Taro (dasheen), Winter melon / wax gourd, Yardlong bean

Herbs: Culantro, Lemongrass

Fruit: Banana, Papaya, Passion fruit

Flowers: Celosia, Pentas (Egyptian star cluster)

Can also plant

Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Green onion / scallion, New Zealand spinach, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Purslane, Salsify, Shallot, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winter squash, Anise hyssop, Basil, Bay laurel, Catnip, Chives, Cuban oregano, Epazote, Garlic chives, Lavender, Lemon balm, Lemon verbena, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Pineapple, Watermelon, Annual salvia, Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Sunflower, Zinnia

Start seeds indoors

Celeriac (celery root), Celery, Eggplant, Ginger, Leek, Malabar spinach, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Sweet potato, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Feverfew, Garlic chives, Lavender, Lemon balm, Marjoram, Oregano, Parsley, Rosemary, Sage, Shiso (perilla), Thyme, Winter savory, Cucamelon / mouse melon, Ground cherry, Papaya, Passion fruit, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster)

September83

Best time to plant

Vegetables: Armenian cucumber, Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cassava (yuca), Celeriac (celery root), Chaya (tree spinach), Cucumber (slicing), Edamame, Eggplant, Ginger, Green onion / scallion, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okinawa spinach, Okra, Onion (bulbing), Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Salsify, Seminole pumpkin / calabaza, Southern pea / cowpea, Sweet corn, Sweet potato, Taro (dasheen), Tomatillo, Tomato (cherry & grape), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winged bean, Winter melon / wax gourd, Winter squash, Yardlong bean

Herbs: Anise hyssop, Basil, Bay laurel, Catnip, Chives, Culantro, Garlic chives, Lemon balm, Lemon verbena, Lemongrass, Marjoram, Mint, Oregano, Papalo, Rosemary, Sage, Shiso (perilla), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory

Fruit: Banana, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Papaya, Passion fruit, Pineapple, Strawberry, Watermelon

Flowers: Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Milkweed (native), Pentas (Egyptian star cluster), Sunflower, Zinnia

Can also plant

Amaranth greens / callaloo, Bean (bush snap), Chickpea / garbanzo, Collard greens, Cucumber (pickling), Leek, Parsnip, Purslane, Shallot, Summer squash & zucchini, Swiss chard, Tomato (early / short-season), Borage, Cuban oregano, Epazote, Feverfew, Lavender, Lovage, Parsley, Sorrel (French / garden), Annual salvia, Marigold, Strawflower

Start seeds indoors

Cabbage, Celeriac (celery root), Celery, Eggplant, Ginger, Leek, Malabar spinach, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Sweet potato, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Feverfew, Garlic chives, Lavender, Lemon balm, Lovage, Marjoram, Oregano, Parsley, Rosemary, Sage, Shiso (perilla), Thyme, Winter savory, Cucamelon / mouse melon, Ground cherry, Papaya, Passion fruit, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Statice, Strawflower

October112

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Cabbage, Cassava (yuca), Celeriac (celery root), Celery, Chaya (tree spinach), Chickpea / garbanzo, Collard greens, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Elephant garlic, Ginger, Green onion / scallion, Leek, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okinawa spinach, Okra, Onion (bulbing), Parsnip, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Potato, Pumpkin, Purslane, Salsify, Seminole pumpkin / calabaza, Shallot, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Taro (dasheen), Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winged bean, Winter melon / wax gourd, Winter squash, Yardlong bean

Herbs: Anise hyssop, Basil, Bay laurel, Caraway, Catnip, Chives, Cuban oregano, Culantro, Epazote, Feverfew, Garlic chives, Lavender, Lemon balm, Lemon verbena, Lemongrass, Lovage, Marjoram, Mint, Oregano, Papalo, Parsley, Rosemary, Sage, Shiso (perilla), Sorrel (French / garden), Stevia, Summer savory, Thyme, Vietnamese coriander (rau ram), Winter savory

Fruit: Banana, Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Papaya, Passion fruit, Pineapple, Strawberry, Watermelon

Flowers: Annual salvia, Bachelor's button (cornflower), Black-eyed Susan, California poppy, Celosia, Cleome (spider flower), Coreopsis (tickseed), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Sunflower, Zinnia

Can also plant

Beet, Carrot, Chinese broccoli (gai lan), Kale, Komatsuna (mustard spinach), Borage, Dill, Tarragon (French), Calendula, Nasturtium, Statice, Strawflower, Sweet alyssum

Start seeds indoors

Cabbage, Celery, Eggplant, Ginger, Leek, Malabar spinach, Pepper (hot / chili), Pepper (sweet / bell), Sweet potato, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Feverfew, Garlic chives, Lavender, Lemon balm, Lovage, Marjoram, Oregano, Parsley, Rosemary, Sage, Shiso (perilla), Thyme, Winter savory, Cucamelon / mouse melon, Ground cherry, Passion fruit, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Pentas (Egyptian star cluster), Statice, Strawflower

November131

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Beet, Bitter melon, Bottle gourd / cucuzza, Cabbage, Carrot, Cassava (yuca), Celeriac (celery root), Celery, Chaya (tree spinach), Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Elephant garlic, Ginger, Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Luffa gourd, Malabar spinach, Moringa, Mustard greens, Napa / Chinese cabbage, New Zealand spinach, Okinawa spinach, Okra, Onion (bulbing), Parsnip, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Potato, Pumpkin, Purslane, Salsify, Seminole pumpkin / calabaza, Shallot, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Taro (dasheen), Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Turnip, Watercress, Winter melon / wax gourd, Winter squash, Yardlong bean

Herbs: Anise hyssop, Basil, Bay laurel, Borage, Caraway, Catnip, Chamomile, Chives, Cuban oregano, Culantro, Dill, Epazote, Fenugreek (methi), Feverfew, Garlic chives, Lavender, Lemon balm, Lemon verbena, Lemongrass, Lovage, Marjoram, Mint, Oregano, Papalo, Parsley, Rosemary, Sage, Shiso (perilla), Sorrel (French / garden), Stevia, Summer savory, Tarragon (French), Thyme, Vietnamese coriander (rau ram), Winter savory

Fruit: Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Strawberry, Watermelon

Flowers: Annual salvia, Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Celosia, Cleome (spider flower), Coreopsis (tickseed), Cosmos, Globe amaranth (gomphrena), Marigold, Milkweed (native), Nasturtium, Pentas (Egyptian star cluster), Statice, Strawflower, Sunflower, Sweet alyssum, Zinnia

Can also plant

Winged bean, Banana, Papaya

Start seeds indoors

Cabbage, Eggplant, Pepper (hot / chili), Pepper (sweet / bell), Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Feverfew, Garlic chives, Lemon balm, Marjoram, Oregano, Parsley, Rosemary, Sage, Shiso (perilla), Thyme, Winter savory, Cucamelon / mouse melon, Ground cherry, Passion fruit, Annual salvia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Statice, Strawflower

December129

Best time to plant

Vegetables: Amaranth greens / callaloo, Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Beet, Bitter melon, Bottle gourd / cucuzza, Cabbage, Carrot, Cassava (yuca), Celeriac (celery root), Celery, Chaya (tree spinach), Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Garden cress, Ginger, Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Luffa gourd, Malabar spinach, Moringa, Mustard greens, Napa / Chinese cabbage, New Zealand spinach, Okinawa spinach, Okra, Onion (bulbing), Parsnip, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Potato, Pumpkin, Purslane, Radish, Seminole pumpkin / calabaza, Shallot, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Turnip, Watercress, Winter melon / wax gourd, Winter squash, Yardlong bean

Fruit: Cantaloupe & melons, Cucamelon / mouse melon, Grape (bunch), Ground cherry, Muscadine grape, Passion fruit, Pineapple, Watermelon

Can also plant

Salsify, Taro (dasheen), Winged bean, Banana, Papaya

Start seeds indoors

Eggplant, Pepper (hot / chili), Pepper (sweet / bell), Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Basil, Catnip, Chives, Garlic chives, Lemon balm, Marjoram, Oregano, Rosemary, Sage, Shiso (perilla), Thyme, Winter savory, Cucamelon / mouse melon, Ground cherry, Passion fruit, Annual salvia, Globe amaranth (gomphrena), Marigold, Milkweed (native), Strawflower

Every crop that grows in Honolulu

139 of 174 crops in the app fit this climate. Dates are for planting outdoors; “Start indoors” is for seeds you grow into transplants.

Vegetables

Crop	Best time to plant	Also possible	Start indoors	How
Amaranth greens / callaloo	Oct 10–Apr 10	Apr 11–Oct 9	—	Sow seeds
Armenian cucumber	Sep 19–Mar 20	Mar 21–Sep 18	—	Sow seeds
Arugula	Nov 22–Feb 13	—	—	Sow seeds
Bean (bush snap)	Oct 1–Apr 1	Apr 2–Sep 30	—	Sow seeds
Bean (dry / shelling)	Sep 5–Mar 6	Mar 7–Sep 4	—	Sow seeds
Bean (lima)	Sep 12–Mar 13	Mar 14–Sep 11	—	Sow seeds
Bean (pole)	Sep 18–Mar 19	Mar 20–Sep 17	—	Sow seeds
Beet	Nov 9–Jan 18	Jan 19–Mar 2, Oct 13–Nov 8	—	Sow seeds
Bitter melon	Sep 21–Mar 22	Mar 23–Sep 20	—	Sow seeds
Bottle gourd / cucuzza	Mar 14–Apr 26, Jul 26–Dec 11	Apr 27–Jul 25, Dec 12–Mar 13	—	Sow seeds
Cabbage	Oct 23–Jan 14	—	Sep 11–Dec 3	Set out plants
Carrot	Nov 2–Jan 11	Jan 12–Feb 22, Oct 5–Nov 1	—	Sow seeds
Cassava (yuca)	Mar 15–Apr 12, Jul 11–Dec 11	Apr 13–Jul 10, Dec 12–Mar 14	—	Set out plants
Celeriac (celery root)	Sep 24–Dec 12	—	Jul 9–Sep 26	Set out plants
Celery	Oct 3–Dec 23	—	Jul 18–Oct 7	Set out plants
Chaya (tree spinach)	Mar 15–Apr 12, Jul 11–Dec 11	Apr 13–Jul 10, Dec 12–Mar 14	—	Set out plants
Chickpea / garbanzo	Oct 10–Dec 19	Sep 11–Oct 9, Dec 20–Jan 30	—	Sow seeds
Chinese broccoli (gai lan)	Nov 4–Jan 13	Jan 14–Feb 25, Oct 7–Nov 3	—	Sow seeds
Collard greens	Oct 17–Jan 26	Jan 27–Mar 25, Sep 3–Oct 16	—	Sow seeds
Cucumber (pickling)	Sep 30–Mar 31	Apr 1–Sep 29	—	Sow seeds
Cucumber (slicing)	Sep 24–Mar 25	Mar 26–Sep 23	—	Sow seeds
Edamame	Sep 12–Mar 13	Mar 14–Sep 11	—	Sow seeds
Eggplant	Sep 12–Mar 13	Mar 14–Sep 11	Jul 11–Jan 9	Set out plants
Elephant garlic	Oct 10–Dec 1	—	—	Sow seeds
Garden cress	Dec 7–Mar 1	—	—	Sow seeds
Ginger	Mar 14–Apr 14, Jul 14–Dec 11	Apr 15–Jul 13, Dec 12–Mar 13	Jan 24–Feb 24, May 26–Oct 23	Set out plants
Green onion / scallion	Sep 18–Mar 19	Mar 20–Sep 17	—	Sow seeds
Jicama	May 23–Jul 31	Mar 15–May 22	—	Sow seeds
Kale	Nov 9–Jan 18	Jan 19–Mar 1, Oct 12–Nov 8	—	Sow seeds
Kohlrabi	Nov 13–Feb 4	—	—	Sow seeds
Komatsuna (mustard spinach)	Nov 17–Jan 26	Jan 27–Mar 10, Oct 21–Nov 16	—	Sow seeds
Leek	Sep 30–Dec 10	Aug 31–Sep 29, Dec 11–Jan 20	Jul 29–Oct 8	Set out plants
Lettuce (leaf & mesclun)	Nov 14–Feb 5	—	—	Sow seeds
Luffa gourd	Mar 15–Apr 2, Jul 1–Dec 11	Apr 3–Jun 30, Dec 12–Mar 14	—	Sow seeds
Malabar spinach	Mar 14–Apr 30, Jul 30–Dec 11	May 1–Jul 29, Dec 12–Mar 13	Jan 24–Mar 12, Jun 11–Oct 23	Set out plants
Moringa	Mar 14–Apr 23, Jul 23–Dec 11	Apr 24–Jul 22, Dec 12–Mar 13	—	Sow seeds
Mustard greens	Nov 19–Feb 10	—	—	Sow seeds
Napa / Chinese cabbage	Oct 31–Jan 22	—	—	Sow seeds
New Zealand spinach	Sep 19–Mar 20	Mar 21–Sep 18	—	Sow seeds
Okinawa spinach	Mar 14–May 9, Aug 9–Dec 12	May 10–Aug 8, Dec 13–Mar 13	—	Set out plants
Okra	Mar 14–May 6, Aug 5–Dec 11	May 7–Aug 4, Dec 12–Mar 13	—	Sow seeds
Onion (bulbing)	Sep 16–Dec 16	—	Jul 1–Sep 30	Set out plants
Parsnip	Sep 27–Dec 7	Aug 28–Sep 26, Dec 8–Jan 17	—	Sow seeds
Peanut	Jan 25–Feb 14, Jul 31–Jan 8	Jan 9–24, Feb 15–Jul 30	—	Sow seeds
Pepper (hot / chili)	Sep 5–Mar 6	Mar 7–Sep 4	Jul 4–Jan 2	Set out plants
Pepper (sweet / bell)	Sep 13–Mar 14	Mar 15–Sep 12	Jul 12–Jan 10	Set out plants
Pigeon pea	May 23–Jul 31	Mar 15–May 22	—	Sow seeds
Popcorn	Aug 27–Feb 25	Feb 26–Aug 26	—	Sow seeds
Potato	Oct 11–Jan 1	—	—	Sow seeds
Pumpkin	Aug 26–Feb 24	Feb 25–Aug 25	—	Sow seeds
Purslane	Sep 30–Mar 31	Apr 1–Sep 29	—	Sow seeds
Radish	Dec 5–Feb 26	—	—	Sow seeds
Roselle	May 23–Jul 31	Mar 15–May 22	Apr 18–Jun 26	Set out plants
Salsify	Sep 13–Nov 23	Aug 13–Sep 12, Nov 24–Jan 2	—	Sow seeds
Seminole pumpkin / calabaza	Feb 20–Mar 18, Jul 23–Dec 25	Mar 19–Jul 22, Dec 26–Feb 19	—	Sow seeds
Shallot	Sep 28–Jan 7	Jan 8–Mar 6, Aug 16–Sep 27	—	Sow seeds
Southern pea / cowpea	Feb 20–Apr 11, Aug 16–Dec 25	Apr 12–Aug 15, Dec 26–Feb 19	—	Sow seeds
Summer squash & zucchini	Sep 27–Mar 28	Mar 29–Sep 26	—	Sow seeds
Sweet corn	Sep 16–Mar 17	Mar 18–Sep 15	—	Sow seeds
Sweet potato	Mar 14–Apr 7, Jul 7–Dec 11	Apr 8–Jul 6, Dec 12–Mar 13	Jan 24–Feb 17, May 19–Oct 23	Set out plants
Swiss chard	Sep 26–Mar 27	Mar 28–Sep 25	—	Sow seeds
Taro (dasheen)	May 17–Nov 15	Nov 16–May 16	—	Sow seeds
Tomatillo	Sep 5–Mar 6	Mar 7–Sep 4	Jul 25–Jan 23	Set out plants
Tomato (cherry & grape)	Sep 19–Mar 20	Mar 21–Sep 18	Aug 1–Jan 30	Set out plants
Tomato (early / short-season)	Oct 10–Mar 3	Mar 4–May 12, Jul 28–Oct 9	Aug 22–Jan 13	Set out plants
Tomato (heat-set varieties)	Sep 10–Mar 11	Mar 12–Sep 9	Jul 23–Jan 21	Set out plants
Tomato (paste / determinate)	Sep 14–Mar 15	Mar 16–Sep 13	Jul 27–Jan 25	Set out plants
Tomato (slicing)	Sep 9–Mar 10	Mar 11–Sep 8	Jul 22–Jan 20	Set out plants
Turnip	Nov 13–Feb 4	—	—	Sow seeds
Watercress	Nov 20–Jan 29	Jan 30–Mar 13, Oct 24–Nov 19	—	Sow seeds
Winged bean	Sep 1–Oct 31	Nov 1–Dec 31	—	Sow seeds
Winter melon / wax gourd	Aug 22–Feb 20	Feb 21–Aug 21	—	Sow seeds
Winter squash	Sep 2–Mar 3	Mar 4–Sep 1	—	Sow seeds
Yardlong bean	Mar 14–Apr 26, Jul 26–Dec 11	Apr 27–Jul 25, Dec 12–Mar 13	—	Sow seeds

Herbs

Crop	Best time to plant	Also possible	Start indoors	How
Anise hyssop	Sep 5–Mar 6	Mar 7–Sep 4	Jul 22–Jan 20	Set out plants
Basil	Sep 24–Mar 25	Mar 26–Sep 23	Aug 20–Feb 18	Set out plants
Bay laurel	Aug 29–Feb 27	Feb 28–Aug 28	—	Set out plants
Borage	Oct 29–Feb 7	Feb 8–Apr 6, Sep 16–Oct 28	—	Sow seeds
Caraway	Oct 22–Dec 31	Sep 23–Oct 21, Jan 1–Feb 11	—	Sow seeds
Catnip	Sep 13–Mar 14	Mar 15–Sep 12	Jul 26–Jan 24	Set out plants
Chamomile	Oct 29–Jan 19	—	—	Sow seeds
Chives	Sep 4–Mar 5	Mar 6–Sep 3	Jul 17–Jan 15	Set out plants
Cuban oregano	Sep 27–Mar 28	Mar 29–Sep 26	—	Set out plants
Culantro	Mar 14–Apr 26, Jul 26–Dec 11	Apr 27–Jul 25, Dec 12–Mar 13	—	Sow seeds
Dill	Nov 16–Jan 25	Jan 26–Mar 9, Oct 20–Nov 15	—	Sow seeds
Epazote	Sep 29–Mar 30	Mar 31–Sep 28	—	Sow seeds
Fenugreek (methi)	Nov 22–Feb 13	—	—	Sow seeds
Feverfew	Oct 9–Jan 18	Jan 19–Mar 17, Aug 26–Oct 8	Aug 21–Nov 30	Set out plants
Garlic chives	Sep 4–Mar 5	Mar 6–Sep 3	Jul 17–Jan 15	Set out plants
Lavender	Oct 1–Jan 11	Jan 12–Mar 10, Aug 18–Sep 30	Jul 16–Oct 26	Set out plants
Lemon balm	Sep 10–Mar 11	Mar 12–Sep 9	Aug 6–Feb 4	Set out plants
Lemon verbena	Sep 10–Mar 11	Mar 12–Sep 9	—	Set out plants
Lemongrass	Mar 14–Apr 14, Jul 14–Dec 11	Apr 15–Jul 13, Dec 12–Mar 13	—	Set out plants
Lovage	Oct 15–Dec 24	Sep 16–Oct 14, Dec 25–Feb 4	Aug 27–Nov 5	Set out plants
Marjoram	Sep 5–Mar 6	Mar 7–Sep 4	Jul 18–Jan 16	Set out plants
Mint	Sep 10–Mar 11	Mar 12–Sep 9	—	Set out plants
Oregano	Sep 2–Mar 3	Mar 4–Sep 1	Jul 15–Jan 13	Set out plants
Papalo	Sep 16–Mar 17	Mar 18–Sep 15	—	Sow seeds
Parsley	Oct 9–Jan 18	Jan 19–Mar 17, Aug 26–Oct 8	Aug 7–Nov 16	Set out plants
Rosemary	Aug 29–Feb 27	Feb 28–Aug 28	Jun 13–Dec 12	Set out plants
Sage	Sep 4–Mar 5	Mar 6–Sep 3	Jul 17–Jan 15	Set out plants
Shiso (perilla)	Sep 16–Mar 17	Mar 18–Sep 15	Aug 12–Feb 10	Set out plants
Sorrel (French / garden)	Oct 21–Jan 30	Jan 31–Mar 29, Sep 8–Oct 20	—	Sow seeds
Stevia	Aug 29–Feb 27	Feb 28–Aug 28	—	Set out plants
Summer savory	Sep 18–Mar 19	Mar 20–Sep 17	—	Sow seeds
Tarragon (French)	Oct 27–Jan 5	Jan 6–Feb 16, Sep 28–Oct 26	—	Set out plants
Thyme	Aug 29–Feb 27	Feb 28–Aug 28	Jul 4–Jan 2	Set out plants
Vietnamese coriander (rau ram)	Sep 21–Mar 22	Mar 23–Sep 20	—	Set out plants
Winter savory	Sep 10–Mar 11	Mar 12–Sep 9	Jul 23–Jan 21	Set out plants

Fruit

Crop	Best time to plant	Also possible	Start indoors	How
Banana	May 8–Nov 6	Nov 7–May 7	—	Set out plants
Cantaloupe & melons	Sep 10–Mar 11	Mar 12–Sep 9	—	Sow seeds
Cucamelon / mouse melon	Sep 16–Mar 17	Mar 18–Sep 15	Aug 12–Feb 10	Set out plants
Grape (bunch)	Sep 2–Mar 3	Mar 4–Sep 1	—	Set out plants
Ground cherry	Sep 13–Mar 14	Mar 15–Sep 12	Jul 26–Jan 24	Set out plants
Muscadine grape	Aug 28–Feb 26	Feb 27–Aug 27	—	Set out plants
Papaya	May 8–Nov 6	Nov 7–May 7	Mar 20–Sep 18	Set out plants
Passion fruit	Aug 25–Feb 23	Feb 24–Aug 24	Jun 23–Dec 22	Set out plants
Pineapple	Sep 1–Mar 2	Mar 3–Aug 31	—	Set out plants
Strawberry	Sep 21–Dec 1	—	—	Set out plants
Watermelon	Sep 8–Mar 9	Mar 10–Sep 7	—	Sow seeds

Flowers

Crop	Best time to plant	Also possible	Start indoors	How
Annual salvia	Sep 29–Mar 30	Mar 31–Sep 28	Jul 21–Jan 19	Set out plants
Bachelor's button (cornflower)	Oct 15–Jan 27	—	—	Sow seeds
Black-eyed Susan	Sep 2–Mar 3	Mar 4–Sep 1	—	Sow seeds
Calendula	Nov 12–Jan 21	Jan 22–Mar 4, Oct 15–Nov 11	—	Sow seeds
California poppy	Oct 15–Jan 27	—	—	Sow seeds
Celosia	Mar 14–Apr 19, Jul 19–Dec 11	Apr 20–Jul 18, Dec 12–Mar 13	Jan 24–Mar 1, May 31–Oct 23	Set out plants
Cleome (spider flower)	Sep 5–Mar 6	Mar 7–Sep 4	—	Sow seeds
Coreopsis (tickseed)	Oct 10–Dec 30	—	—	Sow seeds
Cosmos	Sep 13–Mar 14	Mar 15–Sep 12	—	Sow seeds
Globe amaranth (gomphrena)	Sep 13–Mar 14	Mar 15–Sep 12	Jul 26–Jan 24	Set out plants
Marigold	Sep 26–Mar 27	Mar 28–Sep 25	Aug 8–Feb 6	Set out plants
Milkweed (native)	Sep 10–Mar 11	Mar 12–Sep 9	Aug 6–Feb 4	Set out plants
Nasturtium	Nov 13–Jan 22	Jan 23–Mar 6, Oct 16–Nov 12	—	Sow seeds
Pentas (Egyptian star cluster)	Mar 14–May 20, Aug 20–Dec 12	May 21–Aug 19, Dec 13–Mar 13	Jan 10–Mar 18, Jun 18–Oct 10	Set out plants
Statice	Nov 3–Jan 12	Jan 13–Feb 23, Oct 6–Nov 2	Sep 1–Nov 10	Set out plants
Strawflower	Oct 27–Feb 5	Feb 6–Apr 4, Sep 14–Oct 26	Sep 8–Dec 18	Set out plants
Sunflower	Sep 6–Mar 7	Mar 8–Sep 5	—	Sow seeds
Sweet alyssum	Nov 13–Jan 22	Jan 23–Mar 6, Oct 16–Nov 12	—	Sow seeds
Zinnia	Sep 16–Mar 17	Mar 18–Sep 15	—	Sow seeds

Crops that struggle in Honolulu

These need a climate Honolulu doesn't have. Pots, shade cloth or a greenhouse can stretch the rules.

Artichoke: It never stays cool long enough here; it wants highs under 85°F while it grows.
Asparagus: Needs a real winter; nights in the coldest month here average 66°F.
Bee balm (bergamot): Needs a real winter; nights in the coldest month here average 66°F.
Blackberry: Needs a real winter; nights in the coldest month here average 66°F.
Blueberry: Needs a real winter; nights in the coldest month here average 66°F.
Bok choy / pak choi: It never stays cool long enough here; it wants highs under 80°F while it grows.
Broccoli: It never stays cool long enough here; it wants highs under 82°F while it grows.
Broccoli raab (rapini): It never stays cool long enough here; it wants highs under 82°F while it grows.
Brussels sprouts: It never stays cool long enough here; it wants highs under 82°F while it grows.
Cardoon: It never stays cool long enough here; it wants highs under 85°F while it grows.
Cauliflower: It never stays cool long enough here; it wants highs under 82°F while it grows.
Chervil: It never stays cool long enough here; it wants highs under 80°F while it grows.
Cilantro: It never stays cool long enough here; it wants highs under 82°F while it grows.
Daikon radish: It never stays cool long enough here; it wants highs under 80°F while it grows.
Endive & escarole: It never stays cool long enough here; it wants highs under 78°F while it grows.
Fava bean: It never stays cool long enough here; it wants highs under 75°F while it grows.
Fennel (bulb): It never stays cool long enough here; it wants highs under 80°F while it grows.
Fig: Needs a real winter; nights in the coldest month here average 66°F.
Garlic: Needs a real winter; nights in the coldest month here average 66°F.
Larkspur: It never stays cool long enough here; it wants highs under 80°F while it grows.
Lettuce (romaine & head): It never stays cool long enough here; it wants highs under 82°F while it grows.
Mache (corn salad): It never stays cool long enough here; it wants highs under 76°F while it grows.
Pansy / viola: It never stays cool long enough here; it wants highs under 78°F while it grows.
Pea (shelling / English): It never stays cool long enough here; it wants highs under 82°F while it grows.
Pea (snap & snow): It never stays cool long enough here; it wants highs under 82°F while it grows.
Purple coneflower (echinacea): Needs a real winter; nights in the coldest month here average 66°F.
Radicchio: It never stays cool long enough here; it wants highs under 78°F while it grows.
Raspberry: Needs a real winter; nights in the coldest month here average 66°F.
Rhubarb: Needs a real winter; nights in the coldest month here average 66°F.
Rutabaga: It never stays cool long enough here; it wants highs under 78°F while it grows.
Snapdragon: It never stays cool long enough here; it wants highs under 80°F while it grows.
Spinach: It never stays cool long enough here; it wants highs under 80°F while it grows.
Stock: It never stays cool long enough here; it wants highs under 80°F while it grows.
Sunchoke (Jerusalem artichoke): Needs a real winter; nights in the coldest month here average 66°F.
Sweet pea (flower): It never stays cool long enough here; it wants highs under 80°F while it grows.

Nearby planting calendars

San Francisco, CA 2395 mi · frost-free
San Jose, CA 2413 mi · frost only briefly in winter
Sacramento, CA 2460 mi · frost only briefly in winter
Fresno, CA 2515 mi · frost only briefly in winter
Bakersfield, CA 2534 mi · frost only briefly in winter
All Hawaii cities

How these dates are worked out

Each crop has temperature limits and timing from university extension guides: how cold a night it can take, how much heat it can stand, how long it takes to mature, and how far before or after the last frost it goes in. Those are checked day by day against the Waikiki 717.2 station's NOAA 1991–2020 climate normals (average highs, lows, rain and frost dates). Dates are estimates for a typical year; a sheltered yard, a slope or a cold pocket can shift them by a week or two.

Weather: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals. Crop timing: university extension guides (sources listed for each crop in the app). City locations: GeoNames (CC BY 4.0).