Planting calendar for Portland, Oregon
Dates from 30 years of records at the Portland Kgw-Tv weather station, 0.7 miles from Portland, worked out crop by crop with the same method as the Year Round Garden app.
The most popular crops for Portland this month. Every crop and month is below.
Portland at a glance
- Weather station
- Portland Kgw-Tv · 0.7 mi
- USDA zone
- 9a
- Last spring frost
- typically Feb 25; 1 year in 10 after Mar 21
- First fall frost
- typically Dec 1; 1 year in 10 before Nov 10
- Frost-free season
- about 279 days
- Hottest month
- August: highs 81°F, nights 59°F
- Coldest month
- January: highs 47°F, nights 37°F
- Rain
- 44 in. a year, most in January, November and December
What shapes the seasons here
The last spring frost in Portland typically comes around Feb 25, but 1 year in 10 it comes after Mar 21. The first fall frost typically arrives around Dec 1. That leaves about 279 frost-free days for tender crops like tomatoes, peppers and squash.
Summers are mild, with highs around 81°F in August, so cool-season crops last longer here than in hotter places: leaf lettuce is best planted Jan 31–Apr 9, Aug 15–Nov 27.
Portland gets about 44 inches of rain a year, most of it in January, November and December.
145 of the 174 crops in the app grow here; 29 need a different climate (listed near the bottom).
When to plant the most popular crops
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.
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What to plant in Portland, month by month
January21
Best time to plant
Spinach, Kale, Collard greens, Broccoli, Cabbage
Start seeds indoors
Broccoli, Cabbage, Onion (bulbing)
See all 21 crops in their best window in January
Best time to plant
Vegetables: Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Collard greens, Daikon radish, Fava bean, Kale, Leek, Lettuce (romaine & head), Mache (corn salad), Parsnip, Rutabaga, Spinach
Herbs: Chervil
Flowers: Bachelor's button (cornflower), California poppy, Larkspur, Pansy / viola, Snapdragon, Sweet pea (flower)
Can also plant
Arugula, Beet, Cardoon, Carrot, Chinese broccoli (gai lan), Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Pea (shelling / English), Pea (snap & snow), Radish, Salsify, Shallot, Swiss chard, Turnip, Caraway, Chamomile, Cilantro, Parsley, Blackberry, Blueberry, Calendula, Coreopsis (tickseed), Stock, Sweet alyssum
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Cauliflower, Celery, Lettuce (romaine & head), Onion (bulbing), Catnip, Chives, Lavender, Lovage, Parsley, Rosemary, Pansy / viola, Purple coneflower (echinacea), Snapdragon, Statice, Stock
February59
Best time to plant
Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Cilantro
Start seeds indoors
Broccoli, Cabbage
See all 59 crops in their best window in February
Best time to plant
Vegetables: Artichoke, Arugula, Asparagus, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Carrot, Cauliflower, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Daikon radish, Endive & escarole, Fava bean, Fennel (bulb), Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Parsnip, Pea (shelling / English), Pea (snap & snow), Radicchio, Radish, Rhubarb, Rutabaga, Salsify, Shallot, Spinach, Turnip
Herbs: Caraway, Chamomile, Chervil, Cilantro, Dill, Parsley
Fruit: Blackberry, Blueberry, Fig, Grape (bunch), Raspberry
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Stock, Sweet alyssum, Sweet pea (flower)
Can also plant
Cardoon, Garden cress, Green onion / scallion, Onion (bulbing), Potato, Sunchoke (Jerusalem artichoke), Swiss chard, Watercress, Borage, Catnip, Feverfew, Lemon balm, Lovage, Mint, Sage, Sorrel (French / garden), Muscadine grape, Strawberry
Start seeds indoors
Broccoli, Cabbage, Celeriac (celery root), Celery, Lettuce (romaine & head), Tomato (early / short-season), Anise hyssop, Bee balm (bergamot), Feverfew, Garlic chives, Lemon balm, Oregano, Parsley, Sage, Thyme, Winter savory, Milkweed (native), Stock, Strawflower
March74
Best time to plant
Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Cilantro, Strawberry
Start seeds indoors
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Pepper (hot / chili)
See all 74 crops in their best window in March
Best time to plant
Vegetables: Arugula, Asparagus, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Cabbage, Carrot, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Daikon radish, Garden cress, Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Radicchio, Radish, Shallot, Spinach, Sunchoke (Jerusalem artichoke), Swiss chard, Turnip, Watercress
Herbs: Anise hyssop, Bee balm (bergamot), Caraway, Catnip, Chamomile, Chervil, Chives, Cilantro, Fenugreek (methi), Feverfew, Garlic chives, Lemon balm, Lovage, Mint, Oregano, Parsley, Sage, Sorrel (French / garden), Tarragon (French), Thyme, Winter savory
Fruit: Blackberry, Blueberry, Grape (bunch), Muscadine grape, Strawberry
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Milkweed (native), Pansy / viola, Purple coneflower (echinacea), Snapdragon, Statice, Stock, Sweet alyssum, Sweet pea (flower)
Can also plant
Artichoke, Brussels sprouts, Cardoon, Cauliflower, Celeriac (celery root), Endive & escarole, Fava bean, Fennel (bulb), Potato, Rhubarb, Rutabaga, Salsify, Bay laurel, Borage, Dill, Lavender, Rosemary, Fig, Raspberry, Black-eyed Susan
Start seeds indoors
Cardoon, Celeriac (celery root), Pepper (hot / chili), Pepper (sweet / bell), Tomato (cherry & grape), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Marjoram, Ground cherry, Milkweed (native), Strawflower
April45
Best time to plant
Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Broccoli, Carrot, Radish
Start seeds indoors
Tomato (slicing), Tomato (cherry & grape), Pepper (hot / chili), Eggplant, Onion (bulbing)
See all 45 crops in their best window in April
Best time to plant
Vegetables: Arugula, Beet, Broccoli, Carrot, Celeriac (celery root), Celery, Chinese broccoli (gai lan), Daikon radish, Garden cress, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Napa / Chinese cabbage, Pea (shelling / English), Pea (snap & snow), Potato, Radish, Swiss chard, Tomato (early / short-season), Turnip
Herbs: Anise hyssop, Bay laurel, Bee balm (bergamot), Borage, Caraway, Chamomile, Fenugreek (methi), Feverfew, Garlic chives, Lavender, Oregano, Parsley, Rosemary, Sage, Summer savory, Thyme, Winter savory
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Milkweed (native), Purple coneflower (echinacea), Stock, Strawflower, Sweet alyssum
Can also plant
Bok choy / pak choi, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Cauliflower, Chickpea / garbanzo, Collard greens, Endive & escarole, Fava bean, Fennel (bulb), Kale, Leek, Lettuce (romaine & head), Mache (corn salad), Mustard greens, Onion (bulbing), Parsnip, Rutabaga, Salsify, Shallot, Spinach, Chervil, Chives, Cilantro, Dill, Lemon verbena, Marjoram, Tarragon (French), Fig, Black-eyed Susan, Coreopsis (tickseed), Larkspur, Nasturtium, Pansy / viola, Snapdragon, Statice, Sweet pea (flower)
Start seeds indoors
Cardoon, Celeriac (celery root), Eggplant, Onion (bulbing), Pepper (hot / chili), Tomatillo, Tomato (cherry & grape), Tomato (paste / determinate), Tomato (slicing), Marjoram, Shiso (perilla), Cucamelon / mouse melon, Ground cherry, Annual salvia
May32
Best time to plant
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Cucumber (slicing), Summer squash & zucchini, Bean (bush snap), Sweet corn
Start seeds indoors
Pepper (hot / chili), Onion (bulbing), Basil
See all 32 crops in their best window in May
Best time to plant
Vegetables: Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (pole), Bitter melon, Cardoon, Celeriac (celery root), Cucumber (pickling), Cucumber (slicing), Garden cress, New Zealand spinach, Pepper (sweet / bell), Popcorn, Pumpkin, Salsify, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (paste / determinate), Tomato (slicing), Winter squash
Herbs: Borage, Epazote, Lemon verbena, Marjoram, Shiso (perilla)
Fruit: Cucamelon / mouse melon, Ground cherry
Flowers: Black-eyed Susan, Nasturtium
Can also plant
Arugula, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Carrot, Cauliflower, Celery, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Daikon radish, Fennel (bulb), Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Potato, Radish, Shallot, Spinach, Tomato (early / short-season), Turnip, Caraway, Chamomile, Chervil, Cilantro, Dill, Fenugreek (methi), Parsley, Summer savory, Vietnamese coriander (rau ram), Annual salvia, Bachelor's button (cornflower), Calendula, California poppy, Cleome (spider flower), Coreopsis (tickseed), Larkspur, Marigold, Pansy / viola, Snapdragon, Statice, Stock, Strawflower, Sunflower, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Cardoon, Celeriac (celery root), Celery, Onion (bulbing), Pepper (hot / chili), Tomato (heat-set varieties), Basil, Annual salvia, Globe amaranth (gomphrena), Marigold
June25
Best time to plant
Pepper (hot / chili), Eggplant, Watermelon, Potato, Onion (bulbing), Basil
Start seeds indoors
Tomato (slicing), Pepper (sweet / bell), Pepper (hot / chili), Onion (bulbing)
See all 25 crops in their best window in June
Best time to plant
Vegetables: Amaranth greens / callaloo, Bean (lima), Cardoon, Celeriac (celery root), Edamame, Eggplant, Onion (bulbing), Parsnip, Pepper (hot / chili), Potato, Purslane, Salsify, Shallot, Tomato (heat-set varieties), Winter melon / wax gourd
Herbs: Basil, Papalo, Vietnamese coriander (rau ram)
Fruit: Cantaloupe & melons, Watermelon
Flowers: Annual salvia, Black-eyed Susan, Cleome (spider flower), Marigold, Sunflower
Can also plant
Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (pole), Beet, Bitter melon, Broccoli, Brussels sprouts, Cabbage, Carrot, Cauliflower, Celery, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Daikon radish, Endive & escarole, Fennel (bulb), Garden cress, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Napa / Chinese cabbage, New Zealand spinach, Pea (shelling / English), Pea (snap & snow), Pepper (sweet / bell), Popcorn, Pumpkin, Radish, Rutabaga, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Tomato (slicing), Turnip, Winter squash, Borage, Caraway, Chamomile, Cilantro, Dill, Epazote, Fenugreek (methi), Parsley, Shiso (perilla), Summer savory, Cucamelon / mouse melon, Ground cherry, Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Cosmos, Globe amaranth (gomphrena), Larkspur, Nasturtium, Snapdragon, Statice, Stock, Strawflower, Sweet alyssum, Sweet pea (flower), Zinnia
Start seeds indoors
Cardoon, Celeriac (celery root), Leek, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Tomato (paste / determinate), Tomato (slicing), Parsley, Annual salvia, Globe amaranth (gomphrena), Marigold, Statice, Stock
July28
Best time to plant
Pepper (hot / chili), Watermelon, Potato, Onion (bulbing)
Start seeds indoors
Tomato (cherry & grape), Broccoli, Cabbage, Onion (bulbing)
See all 28 crops in their best window in July
Best time to plant
Vegetables: Bean (dry / shelling), Cardoon, Celeriac (celery root), Celery, Napa / Chinese cabbage, Onion (bulbing), Pepper (hot / chili), Potato, Pumpkin, Salsify, Shallot, Swiss chard, Winter melon / wax gourd, Winter squash
Herbs: Borage, Vietnamese coriander (rau ram)
Fruit: Cantaloupe & melons, Watermelon
Flowers: Annual salvia, Black-eyed Susan, Cleome (spider flower), Coreopsis (tickseed), Cosmos, Globe amaranth (gomphrena), Marigold, Nasturtium, Sunflower, Zinnia
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Arugula, Bean (bush snap), Bean (lima), Bean (pole), Beet, Bitter melon, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Carrot, Cauliflower, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Daikon radish, Edamame, Eggplant, Endive & escarole, Fava bean, Fennel (bulb), Garden cress, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, New Zealand spinach, Parsnip, Pea (shelling / English), Pea (snap & snow), Pepper (sweet / bell), Popcorn, Purslane, Radish, Rutabaga, Spinach, Summer squash & zucchini, Sweet corn, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Turnip, Basil, Caraway, Chamomile, Chervil, Cilantro, Dill, Epazote, Fenugreek (methi), Papalo, Parsley, Shiso (perilla), Summer savory, Cucamelon / mouse melon, Ground cherry, Bachelor's button (cornflower), Calendula, California poppy, Larkspur, Pansy / viola, Snapdragon, Statice, Stock, Strawflower, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Cardoon, Cauliflower, Leek, Lettuce (romaine & head), Onion (bulbing), Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Parsley, Pansy / viola, Snapdragon, Statice, Stock, Strawflower
August60
Best time to plant
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Pepper (hot / chili), Cucumber (slicing), Summer squash & zucchini, Sweet corn, Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Broccoli, Carrot, Onion (bulbing), Cilantro
Start seeds indoors
Broccoli, Cabbage, Onion (bulbing)
See all 60 crops in their best window in August
Best time to plant
Vegetables: Armenian cucumber, Arugula, Bean (dry / shelling), Bean (pole), Beet, Bitter melon, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Cardoon, Carrot, Cauliflower, Celeriac (celery root), Chinese broccoli (gai lan), Cucumber (pickling), Cucumber (slicing), Endive & escarole, Fennel (bulb), Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Napa / Chinese cabbage, New Zealand spinach, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Pepper (hot / chili), Pepper (sweet / bell), Potato, Salsify, Shallot, Summer squash & zucchini, Sweet corn, Swiss chard, Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Tomato (slicing), Turnip
Herbs: Borage, Caraway, Chamomile, Cilantro, Fenugreek (methi), Parsley
Flowers: Annual salvia, Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Coreopsis (tickseed), Marigold, Nasturtium, Statice, Stock, Sweet alyssum, Sweet pea (flower)
Can also plant
Amaranth greens / callaloo, Bean (bush snap), Brussels sprouts, Cabbage, Collard greens, Daikon radish, Fava bean, Garden cress, Kale, Mache (corn salad), Mustard greens, Purslane, Radish, Rutabaga, Spinach, Tomatillo, Basil, Chervil, Dill, Epazote, Shiso (perilla), Summer savory, Cucamelon / mouse melon, Ground cherry, Cleome (spider flower), Larkspur, Pansy / viola, Snapdragon, Strawflower, Sunflower
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Cardoon, Leek, Lettuce (romaine & head), Onion (bulbing), Parsley, Pansy / viola, Snapdragon, Stock
September60
Best time to plant
Summer squash & zucchini, Bean (bush snap), Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Cilantro
Start seeds indoors
Broccoli, Cabbage
See all 60 crops in their best window in September
Best time to plant
Vegetables: Arugula, Bean (bush snap), Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Cauliflower, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Daikon radish, Fava bean, Garden cress, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Radish, Rutabaga, Salsify, Shallot, Spinach, Summer squash & zucchini, Swiss chard, Tomato (early / short-season), Turnip
Herbs: Borage, Caraway, Chamomile, Chervil, Cilantro, Dill, Epazote, Fenugreek (methi), Parsley
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Statice, Stock, Strawflower, Sweet alyssum, Sweet pea (flower)
Can also plant
Celeriac (celery root), Annual salvia, Marigold, Nasturtium
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Leek, Lettuce (romaine & head), Parsley, Pansy / viola, Snapdragon, Stock
October51
Best time to plant
Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Garlic, Cilantro
Start seeds indoors
Broccoli, Cabbage
See all 51 crops in their best window in October
Best time to plant
Vegetables: Arugula, Beet, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Chinese broccoli (gai lan), Collard greens, Daikon radish, Elephant garlic, Fava bean, Garden cress, Garlic, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Radish, Rutabaga, Salsify, Shallot, Spinach, Swiss chard, Turnip
Herbs: Caraway, Chamomile, Chervil, Cilantro, Fenugreek (methi), Parsley
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Stock, Sweet alyssum, Sweet pea (flower)
Can also plant
Celeriac (celery root)
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Lettuce (romaine & head), Pansy / viola, Snapdragon
November48
Best time to plant
Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Garlic, Cilantro
See all 48 crops in their best window in November
Best time to plant
Vegetables: Arugula, Beet, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Carrot, Chinese broccoli (gai lan), Collard greens, Daikon radish, Elephant garlic, Fava bean, Garlic, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Radish, Rutabaga, Salsify, Shallot, Spinach, Swiss chard, Turnip
Herbs: Caraway, Chamomile, Chervil, Cilantro, Parsley
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Stock, Sweet alyssum, Sweet pea (flower)
Can also plant
Cardoon, Celeriac (celery root)
Start seeds indoors
Brussels sprouts, Leek, Pansy / viola, Snapdragon
December11
Best time to plant
Spinach, Kale, Collard greens
Start seeds indoors
Broccoli, Cabbage, Onion (bulbing)
See all 11 crops in their best window in December
Best time to plant
Vegetables: Brussels sprouts, Collard greens, Fava bean, Kale, Leek, Parsnip, Rutabaga, Spinach
Flowers: Larkspur, Pansy / viola, Snapdragon
Can also plant
Arugula, Beet, Broccoli, Broccoli raab (rapini), Cabbage, Cardoon, Carrot, Chinese broccoli (gai lan), Daikon radish, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Lettuce (romaine & head), Mache (corn salad), Mustard greens, Napa / Chinese cabbage, Onion (bulbing), Pea (shelling / English), Pea (snap & snow), Radish, Salsify, Shallot, Swiss chard, Turnip, Caraway, Chamomile, Chervil, Cilantro, Parsley, Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Stock, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Artichoke, Broccoli, Brussels sprouts, Cabbage, Cauliflower, Leek, Lettuce (romaine & head), Onion (bulbing), Parsley, Pansy / viola, Snapdragon, Statice, Stock
Every crop that grows in Portland
145 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 | Jun 18–Jul 2 | Jul 3–Aug 31 | — | Sow seeds |
| Armenian cucumber | May 12–26, Aug 12–Sep 1 | May 27–Aug 11 | — | Sow seeds |
| Artichoke | Feb 11–25 | Feb 26–Mar 25 | Dec 10–24 | Set out plants |
| Arugula | Feb 3–Apr 15, Aug 16–Nov 25 | Apr 16–Jun 16, Jul 5–Aug 15, Nov 26–Feb 2 | — | Sow seeds |
| Asparagus | Feb 15–Mar 15 | Jan 28–Feb 14, Mar 16–25 | — | Set out plants |
| Bean (bush snap) | May 12–26, Aug 26–Sep 14 | May 27–Aug 25 | — | Sow seeds |
| Bean (dry / shelling) | May 12–26, Jul 22–Aug 12 | May 27–Jul 21 | — | Sow seeds |
| Bean (lima) | Jun 18–Jul 2, Jul 28–Aug 5 | Jul 3–27 | — | Sow seeds |
| Bean (pole) | May 12–26, Aug 16–Sep 2 | May 27–Aug 15 | — | Sow seeds |
| Beet | Feb 9–Apr 28, Aug 12–Nov 23 | Apr 29–Aug 11, Nov 24–Feb 8 | — | Sow seeds |
| Bitter melon | May 12–26, Aug 14–Sep 4 | May 27–Aug 13 | — | Sow seeds |
| Bok choy / pak choi | Feb 11–Apr 4, Aug 18–Sep 25 | Apr 5–May 12, Jun 25–Aug 17 | — | Sow seeds |
| Broccoli | Jan 21–Apr 13, Aug 25–Dec 2 | Apr 14–Aug 24, Dec 3–Jan 20 | Jul 14–Oct 21, Dec 10–Mar 2 | Set out plants |
| Broccoli raab (rapini) | Jan 23–Mar 31, Aug 25–Nov 30 | Apr 1–May 24, Jun 27–Aug 24, Dec 1–Jan 22 | — | Sow seeds |
| Brussels sprouts | Sep 4–Mar 5 | Mar 6–Sep 3 | Jul 24–Jan 22 | Set out plants |
| Cabbage | Jan 12–Apr 3, Aug 28–Dec 6 | Apr 4–Aug 27, Dec 7–Jan 11 | Jul 17–Oct 25, Dec 1–Feb 20 | Set out plants |
| Cardoon | May 8–Oct 31 | Nov 1–May 7 | Mar 6–Aug 29 | Set out plants |
| Carrot | Feb 6–Apr 22, Aug 10–Nov 24 | Apr 23–Aug 9, Nov 25–Feb 5 | — | Sow seeds |
| Cauliflower | Feb 4–18, Aug 21–Sep 10 | Feb 19–Aug 20 | Jul 10–30, Dec 24–Jan 7 | Set out plants |
| Celeriac (celery root) | Apr 13–Aug 25 | Feb 22–Apr 12, Aug 26–Nov 17 | Jan 26–Jun 9 | Set out plants |
| Celery | Apr 11–25, Jul 14–Aug 4 | Apr 26–Jul 13 | Jan 24–Feb 7, Apr 28–May 19 | Set out plants |
| Chickpea / garbanzo | Feb 22–Mar 8 | Mar 9–Aug 1 | — | Sow seeds |
| Chinese broccoli (gai lan) | Feb 15–Apr 27, Aug 3–Nov 20 | Apr 28–Aug 2, Nov 21–Feb 14 | — | Sow seeds |
| Collard greens | Jan 7–Mar 30, Sep 1–Dec 9 | Mar 31–Aug 31, Dec 10–Jan 6 | — | Sow seeds |
| Cucumber (pickling) | May 12–26, Aug 19–Sep 9 | May 27–Aug 18 | — | Sow seeds |
| Cucumber (slicing) | May 12–26, Aug 17–Sep 6 | May 27–Aug 16 | — | Sow seeds |
| Daikon radish | Jan 14–Apr 11, Sep 3–Dec 6 | Apr 12–Sep 2, Dec 7–Jan 13 | — | Sow seeds |
| Edamame | Jun 18–Jul 2, Jul 30–Aug 4 | Jul 3–29 | — | Sow seeds |
| Eggplant | Jun 18–Jul 2, Aug 2–4 | Jul 3–Aug 1 | Apr 16–30, May 31–Jun 2 | Set out plants |
| Elephant garlic | Oct 2–Dec 1 | — | — | Sow seeds |
| Endive & escarole | Feb 4–18, Aug 3–24 | Feb 19–May 9, Jun 20–Aug 2 | — | Sow seeds |
| Fava bean | Jan 9–Mar 5, Sep 12–Dec 9 | Mar 6–Apr 14, Jun 30–Sep 11, Dec 10–Jan 8 | — | Sow seeds |
| Fennel (bulb) | Feb 11–25, Aug 13–Sep 3 | Feb 26–Aug 12 | — | Sow seeds |
| Garden cress | Mar 11–May 7, Aug 29–Oct 28 | Feb 11–Mar 10, May 8–Jun 28, Jul 21–Aug 28 | — | Sow seeds |
| Garlic | Oct 2–Dec 1 | — | — | Sow seeds |
| Green onion / scallion | Feb 25–Mar 25 | Jan 28–Feb 24 | — | Sow seeds |
| Kale | Sep 12–Dec 15, Dec 29–Mar 26 | Mar 27–Sep 11, Dec 16–28 | — | Sow seeds |
| Kohlrabi | Feb 8–May 3, Aug 18–Nov 23 | May 4–Aug 17, Nov 24–Feb 7 | — | Sow seeds |
| Komatsuna (mustard spinach) | Feb 9–Apr 15, Jul 30–Nov 23 | Apr 16–Jul 29, Nov 24–Feb 8 | — | Sow seeds |
| Leek | Jan 9–Mar 10, Aug 21–Dec 8 | Mar 11–Aug 20, Dec 9–Jan 8 | Jun 19–Oct 6, Nov 7–Jan 6 | Set out plants |
| Lettuce (leaf & mesclun) | Jan 31–Apr 9, Aug 15–Nov 27 | Apr 10–Jun 10, Jun 28–Aug 14, Nov 28–Jan 30 | — | Sow seeds |
| Lettuce (romaine & head) | Jan 19–Mar 23, Aug 24–Dec 3 | Mar 24–May 15, Jun 18–Aug 23, Dec 4–Jan 18 | Jul 20–Oct 29, Dec 15–Feb 16 | Set out plants |
| Mache (corn salad) | Jan 13–Mar 13, Sep 23–Dec 6 | Mar 14–Apr 20, Jul 26–Sep 22, Dec 7–Jan 12 | — | Sow seeds |
| Mustard greens | Jan 26–Apr 5, Aug 26–Nov 29 | Apr 6–May 29, Jul 2–Aug 25, Nov 30–Jan 25 | — | Sow seeds |
| Napa / Chinese cabbage | Feb 21–Apr 9, Jul 14–Nov 17 | Apr 10–May 28, Jun 13–Jul 13, Nov 18–Feb 20 | — | Sow seeds |
| New Zealand spinach | May 12–26, Aug 19–Sep 4 | May 27–Aug 18 | — | Sow seeds |
| Onion (bulbing) | Feb 26–Apr 3, Jun 22–Nov 14 | Apr 4–Jun 21, Nov 15–Feb 25 | Apr 6–Aug 29, Dec 11–Jan 16 | Set out plants |
| Parsnip | Jan 9–Mar 7, Jun 13–27, Aug 21–Dec 8 | Mar 8–Jun 12, Jun 28–Aug 20, Dec 9–Jan 8 | — | Sow seeds |
| Pea (shelling / English) | Feb 4–Apr 26, Aug 17–Nov 25 | Apr 27–Aug 16, Nov 26–Feb 3 | — | Sow seeds |
| Pea (snap & snow) | Feb 3–Apr 24, Aug 16–Nov 25 | Apr 25–Aug 15, Nov 26–Feb 2 | — | Sow seeds |
| Pepper (hot / chili) | May 27–Jun 10, Jul 25–Aug 12 | Jun 11–Jul 24 | Mar 25–Apr 8, May 23–Jun 10 | Set out plants |
| Pepper (sweet / bell) | May 12–26, Aug 4–25 | May 27–Aug 3 | Mar 10–24, Jun 2–23 | Set out plants |
| Popcorn | May 12–19 | May 20–Jul 30 | — | Sow seeds |
| Potato | Apr 8–May 5, Jun 4–Aug 14 | Jan 28–Apr 7, May 6–Jun 3 | — | Sow seeds |
| Pumpkin | May 12–26, Jun 30–Jul 21 | May 27–Jun 29 | — | Sow seeds |
| Purslane | Jun 18–Jul 2 | Jul 3–Aug 22 | — | Sow seeds |
| Radicchio | Feb 17–Mar 13 | Jan 28–Feb 16, Mar 14–18 | — | Sow seeds |
| Radish | Feb 3–Apr 27, Aug 31–Nov 25 | Apr 28–Jun 25, Jul 19–Aug 30, Nov 26–Feb 2 | — | Sow seeds |
| Rhubarb | Jan 28–Feb 25 | Feb 26–Mar 25 | — | Set out plants |
| Rutabaga | Sep 14–Feb 25 | Feb 26–May 1, Jun 6–Sep 13 | — | Sow seeds |
| Salsify | Feb 6–Mar 2, May 20–Jul 8, Aug 9–Nov 24 | Mar 3–May 19, Jul 9–Aug 8, Nov 25–Feb 5 | — | Sow seeds |
| Shallot | Feb 4–Mar 31, Jun 24–Jul 10, Aug 8–Nov 25 | Apr 1–Jun 23, Jul 11–Aug 7, Nov 26–Feb 3 | — | Sow seeds |
| Spinach | Sep 24–Dec 15, Dec 28–Mar 15 | Mar 16–May 16, Jun 29–Sep 23, Dec 16–27 | — | Sow seeds |
| Summer squash & zucchini | May 12–26, Aug 22–Sep 11 | May 27–Aug 21 | — | Sow seeds |
| Sunchoke (Jerusalem artichoke) | Feb 25–Mar 18 | Feb 4–24 | — | Sow seeds |
| Sweet corn | May 12–19, Aug 4–24 | May 20–Aug 3 | — | Sow seeds |
| Swiss chard | Mar 11–May 15, Jul 15–Nov 8 | May 16–Jul 14, Nov 9–Mar 10 | — | Sow seeds |
| Tomatillo | May 12–26 | May 27–Aug 22 | Mar 31–Apr 14 | Set out plants |
| Tomato (cherry & grape) | May 12–26, Aug 19–Sep 4 | May 27–Aug 18 | Mar 24–Apr 7, Jul 1–17 | Set out plants |
| Tomato (early / short-season) | Apr 11–18, Aug 24–Sep 13 | Apr 19–Aug 23 | Feb 21–28, Jul 6–26 | Set out plants |
| Tomato (heat-set varieties) | Jun 18–Jul 2 | Jul 3–Aug 3 | Apr 30–May 14 | Set out plants |
| Tomato (paste / determinate) | May 12–26, Aug 6–27 | May 27–Aug 5 | Mar 24–Apr 7, Jun 18–Jul 9 | Set out plants |
| Tomato (slicing) | May 12–26, Aug 4–24 | May 27–Aug 3 | Mar 24–Apr 7, Jun 16–Jul 6 | Set out plants |
| Turnip | Feb 8–May 3, Aug 18–Nov 23 | May 4–Aug 17, Nov 24–Feb 7 | — | Sow seeds |
| Watercress | Mar 4–Apr 1 | Feb 4–Mar 3 | — | Sow seeds |
| Winter melon / wax gourd | Jun 18–Jul 14 | — | — | Sow seeds |
| Winter squash | May 12–26, Jul 10–31 | May 27–Jul 9 | — | Sow seeds |
Herbs
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Anise hyssop | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 8–Mar 8 | Set out plants |
| Basil | Jun 18–25 | Jun 26–Aug 16 | May 14–21 | Set out plants |
| Bay laurel | Mar 29–Apr 22 | Mar 4–28 | — | Set out plants |
| Bee balm (bergamot) | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 4–Mar 4 | Set out plants |
| Borage | Apr 16–May 19, Jul 11–Sep 23 | Feb 18–Apr 15, May 20–Jul 10 | — | Sow seeds |
| Caraway | Feb 4–Apr 11, Aug 8–Nov 25 | Apr 12–Aug 7, Nov 26–Feb 3 | — | Sow seeds |
| Catnip | Mar 4–25 | Feb 11–Mar 3 | Jan 14–Feb 4 | Set out plants |
| Chamomile | Feb 7–Apr 23, Aug 10–Nov 24 | Apr 24–Aug 9, Nov 25–Feb 6 | — | Sow seeds |
| Chervil | Jan 25–Mar 29, Aug 26–Nov 30 | Mar 30–May 12, Jun 25–Aug 25, Dec 1–Jan 24 | — | Sow seeds |
| Chives | Feb 25–Mar 25 | Mar 26–Apr 22 | Jan 7–Feb 4 | Set out plants |
| Cilantro | Jan 31–Apr 2, Aug 15–Nov 27 | Apr 3–May 18, Jun 20–Aug 14, Nov 28–Jan 30 | — | Sow seeds |
| Dill | Feb 11–18, Sep 7–28 | Feb 19–Sep 6 | — | Sow seeds |
| Epazote | May 12–26, Aug 31–Sep 13 | May 27–Aug 30 | — | Sow seeds |
| Fenugreek (methi) | Mar 11–Apr 29, Aug 8–Oct 10 | Feb 25–Mar 10, Apr 30–Aug 7 | — | Sow seeds |
| Feverfew | Mar 18–Apr 15 | Feb 18–Mar 17 | Jan 28–Feb 25 | Set out plants |
| Garlic chives | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 4–Mar 4 | Set out plants |
| Lavender | Mar 29–Apr 22 | Mar 4–28 | Jan 11–Feb 4 | Set out plants |
| Lemon balm | Mar 4–25 | Feb 11–Mar 3 | Jan 28–Feb 18 | Set out plants |
| Lemon verbena | May 6–30 | Apr 11–May 5 | — | Set out plants |
| Lovage | Feb 24–Mar 17 | Feb 11–23, Mar 18–25 | Jan 6–27 | Set out plants |
| Marjoram | May 6–30 | Apr 11–May 5 | Mar 18–Apr 11 | Set out plants |
| Mint | Mar 4–25 | Feb 11–Mar 3 | — | Set out plants |
| Oregano | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 4–Mar 4 | Set out plants |
| Papalo | Jun 18–Jul 2 | Jul 3–Aug 9 | — | Sow seeds |
| Parsley | Feb 4–Apr 11, Aug 8–Nov 25 | Apr 12–Aug 7, Nov 26–Feb 3 | Jun 6–Sep 23, Dec 3–Feb 7 | Set out plants |
| Rosemary | Mar 29–Apr 22 | Mar 4–28 | Jan 11–Feb 4 | Set out plants |
| Sage | Mar 18–Apr 15 | Feb 18–Mar 17 | Jan 28–Feb 25 | Set out plants |
| Shiso (perilla) | May 12–19 | May 20–Sep 1 | Apr 7–14 | Set out plants |
| Sorrel (French / garden) | Mar 4–Apr 1 | Feb 4–Mar 3 | — | Sow seeds |
| Summer savory | Apr 11–25 | Apr 26–Sep 6 | — | Sow seeds |
| Tarragon (French) | Mar 7–Apr 4 | Feb 25–Mar 6, Apr 5–22 | — | Set out plants |
| Thyme | Mar 25–Apr 22 | Feb 25–Mar 24 | Jan 28–Feb 25 | Set out plants |
| Vietnamese coriander (rau ram) | Jun 9–Jul 7 | May 12–Jun 8 | — | Set out plants |
| Winter savory | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 4–Mar 4 | Set out plants |
Fruit
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Blackberry | Feb 22–Mar 25 | Jan 21–Feb 21 | — | Set out plants |
| Blueberry | Feb 8–Mar 18 | Dec 31–Feb 7 | — | Set out plants |
| Cantaloupe & melons | Jun 18–Jul 2, Jul 23–Aug 2 | Jul 3–22 | — | Sow seeds |
| Cucamelon / mouse melon | May 12–26 | May 27–Aug 27 | Apr 7–21 | Set out plants |
| Fig | Feb 4–Mar 4 | Mar 5–Apr 15 | — | Set out plants |
| Grape (bunch) | Feb 18–Mar 11 | Jan 28–Feb 17 | — | Set out plants |
| Ground cherry | May 12–26 | May 27–Aug 29 | Mar 24–Apr 7 | Set out plants |
| Muscadine grape | Feb 25–Mar 18 | Feb 4–24 | — | Set out plants |
| Raspberry | Jan 29–Feb 26 | Jan 28, Feb 27–Mar 25 | — | Set out plants |
| Strawberry | Feb 25–Mar 25 | Jan 28–Feb 24 | — | Set out plants |
| Watermelon | Jun 18–Jul 2, Jul 20–31 | Jul 3–19 | — | Sow seeds |
Flowers
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Annual salvia | Jun 19–Aug 20 | May 12–Jun 18, Aug 21–Sep 13 | Apr 10–Jun 11 | Set out plants |
| Bachelor's button (cornflower) | Jan 19–Apr 10, Aug 24–Dec 2 | Apr 11–Aug 23, Dec 3–Jan 18 | — | Sow seeds |
| Black-eyed Susan | May 17–Aug 15 | Feb 25–May 16, Aug 16–24 | — | Sow seeds |
| Calendula | Feb 10–Apr 30, Aug 12–Nov 22 | May 1–Aug 11, Nov 23–Feb 9 | — | Sow seeds |
| California poppy | Jan 19–Apr 10, Aug 24–Dec 2 | Apr 11–Aug 23, Dec 3–Jan 18 | — | Sow seeds |
| Cleome (spider flower) | Jun 12–Aug 2 | May 12–Jun 11, Aug 3–22 | — | Sow seeds |
| Coreopsis (tickseed) | Feb 15–Apr 6, Jun 25–Jul 17, Aug 4–Nov 20 | Apr 7–Jun 24, Jul 18–Aug 3, Nov 21–Feb 14 | — | Sow seeds |
| Cosmos | Jul 2–26 | Jun 18–Jul 1, Jul 27–Aug 6 | — | Sow seeds |
| Globe amaranth (gomphrena) | Jul 2–26 | Jun 18–Jul 1, Jul 27–Aug 6 | May 14–Jun 7 | Set out plants |
| Larkspur | Sep 7–Mar 8 | Mar 9–Sep 6 | — | Sow seeds |
| Marigold | Jun 18–Aug 17 | May 12–Jun 17, Aug 18–Sep 10 | Apr 30–Jun 29 | Set out plants |
| Milkweed (native) | Mar 25–Apr 22 | Feb 25–Mar 24 | Feb 18–Mar 18 | Set out plants |
| Nasturtium | May 21–Jun 3, Jul 1–Sep 6 | Apr 11–May 20, Jun 4–30, Sep 7–21 | — | Sow seeds |
| Pansy / viola | Jan 10–Mar 29, Sep 18–Dec 7 | Mar 30–Jun 5, Jul 21–Sep 17, Dec 8–Jan 9 | Jul 3–Sep 21, Oct 25–Jan 11 | Set out plants |
| Purple coneflower (echinacea) | Mar 25–Apr 22 | Feb 25–Mar 24 | Jan 7–Feb 4 | Set out plants |
| Snapdragon | Sep 1–Dec 14, Dec 29–Mar 16 | Mar 17–Aug 31, Dec 15–28 | Jun 30–Oct 12, Oct 27–Jan 12 | Set out plants |
| Statice | Feb 25–Mar 11, Aug 23–Sep 13 | Mar 12–Aug 22 | Jun 21–Jul 12, Dec 24–Jan 7 | Set out plants |
| Stock | Feb 7–May 1, Aug 18–Nov 24 | May 2–Aug 17, Nov 25–Feb 6 | Jun 16–Sep 22, Dec 6–Feb 27 | Set out plants |
| Strawflower | Apr 11–25, Aug 31–Sep 20 | Apr 26–Aug 30 | Feb 21–Mar 7, Jul 13–Aug 2 | Set out plants |
| Sunflower | Jun 14–Aug 1 | May 12–Jun 13, Aug 2–17 | — | Sow seeds |
| Sweet alyssum | Feb 11–May 2, Aug 13–Nov 22 | May 3–Aug 12, Nov 23–Feb 10 | — | Sow seeds |
| Sweet pea (flower) | Jan 14–Apr 1, Aug 23–Dec 5 | Apr 2–Aug 22, Dec 6–Jan 13 | — | Sow seeds |
| Zinnia | Jul 3–29 | Jun 18–Jul 2, Jul 30–Aug 9 | — | Sow seeds |
Crops that struggle in Portland
These need a climate Portland doesn't have. Pots, shade cloth or a greenhouse can stretch the rules.
- Banana: Has to live outdoors through winter and needs nights no colder than about 45°F; the coldest month here averages 37°F.
- Bottle gourd / cucuzza: The frost-free season (about 279 days) is shorter than the 70 days it needs.
- Cassava (yuca): Has to live outdoors through winter and needs nights no colder than about 40°F; the coldest month here averages 37°F.
- Celosia: The frost-free season (about 279 days) is shorter than the 80 days it needs.
- Chaya (tree spinach): Has to live outdoors through winter and needs nights no colder than about 40°F; the coldest month here averages 37°F.
- Cuban oregano: The frost-free season (about 279 days) is shorter than the 52 days it needs.
- Culantro: The frost-free season (about 279 days) is shorter than the 70 days it needs.
- Ginger: The frost-free season (about 279 days) is shorter than the 270 days it needs.
- Jicama: The frost-free season (about 279 days) is shorter than the 180 days it needs.
- Lemongrass: The frost-free season (about 279 days) is shorter than the 88 days it needs.
- Luffa gourd: The frost-free season (about 279 days) is shorter than the 105 days it needs.
- Malabar spinach: The frost-free season (about 279 days) is shorter than the 65 days it needs.
- Moringa: The frost-free season (about 279 days) is shorter than the 75 days it needs.
- Okinawa spinach: The frost-free season (about 279 days) is shorter than the 52 days it needs.
- Okra: The frost-free season (about 279 days) is shorter than the 58 days it needs.
- Papaya: Has to live outdoors through winter and needs nights no colder than about 48°F; the coldest month here averages 37°F.
- Passion fruit: Has to live outdoors through winter and needs nights no colder than about 44°F; the coldest month here averages 37°F.
- Peanut: The frost-free season (about 279 days) is shorter than the 130 days it needs.
- Pentas (Egyptian star cluster): The frost-free season (about 279 days) is shorter than the 38 days it needs.
- Pigeon pea: The frost-free season (about 279 days) is shorter than the 150 days it needs.
- Pineapple: Has to live outdoors through winter and needs nights no colder than about 45°F; the coldest month here averages 37°F.
- Roselle: The frost-free season (about 279 days) is shorter than the 165 days it needs.
- Seminole pumpkin / calabaza: The frost-free season (about 279 days) is shorter than the 108 days it needs.
- Southern pea / cowpea: The frost-free season (about 279 days) is shorter than the 75 days it needs.
- Stevia: The frost-free season (about 279 days) is shorter than the 100 days it needs.
- Sweet potato: The frost-free season (about 279 days) is shorter than the 105 days it needs.
- Taro (dasheen): The frost-free season (about 279 days) is shorter than the 225 days it needs.
- Winged bean: The frost-free season (about 279 days) is shorter than the 105 days it needs.
- Yardlong bean: The frost-free season (about 279 days) is shorter than the 70 days it needs.
Nearby planting calendars
- Seattle, WA 145 mi · last frost around Mar 13
- Boise, ID 345 mi · last frost around Apr 24
- Sacramento, CA 483 mi · frost only briefly in winter
- San Francisco, CA 536 mi · frost-free
- San Jose, CA 567 mi · frost only briefly in winter
- All Oregon 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 Portland Kgw-Tv 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).