Planting calendar for Jacksonville, Florida
Dates from 30 years of records at the Jacksonville NAS weather station, 6.9 miles from Jacksonville, worked out crop by crop with the same method as the Year Round Garden app.
The most popular crops for Jacksonville this month. Every crop and month is below.
Jacksonville at a glance
- Weather station
- Jacksonville NAS · 6.9 mi
- USDA zone
- 9b
- Frost
- Brief: typically Jan 5–Feb 1; 1 year in 10 Dec 3–Mar 3
- Hottest month
- July: highs 92°F, nights 76°F
- Coldest month
- January: highs 66°F, nights 47°F
- Rain
- 48 in. a year, most in June, August and September
What shapes the seasons here
Frost is brief in Jacksonville: the frosty spell typically runs only from about Jan 5 to Feb 1, and 1 year in 10 it stretches from Dec 3 to Mar 3. Tender crops can go in most of the year; summer heat, not frost, is the main limit.
Summer nights average 76°F in August. Above about 75°F, tomatoes and peppers stop setting fruit, so the best tomato planting here is Feb 8–22, Sep 8–28, timed so plants fruit before or after the hottest weeks.
Jacksonville gets about 48 inches of rain a year, most of it in June, August and September. Crops that rot or get disease in hot, wet weather are timed to miss those months.
170 of the 174 crops in the app grow here; 4 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 Jacksonville, month by month
January60
Best time to plant
Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Cilantro
Start seeds indoors
Eggplant
See all 60 crops in their best window in January
Best time to plant
Vegetables: Artichoke, Arugula, Asparagus, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Cabbage, Carrot, Cauliflower, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Daikon radish, Garden cress, Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, Napa / Chinese cabbage, Pea (shelling / English), Pea (snap & snow), Potato, Radicchio, Radish, Shallot, Spinach, Sunchoke (Jerusalem artichoke), Swiss chard, Turnip, Watercress
Herbs: Borage, Caraway, Catnip, Chamomile, Chervil, Cilantro, Dill, Fenugreek (methi), Feverfew, Lemon balm, Lovage, Mint, Parsley, Sage, Sorrel (French / garden)
Fruit: Blackberry, Fig, Muscadine grape
Flowers: Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Pansy / viola, Statice, Stock, Sweet alyssum
Can also plant
Brussels sprouts, Cardoon, Celeriac (celery root), Celery, Endive & escarole, Fennel (bulb), Leek, Mache (corn salad), Parsnip, Rutabaga, Salsify, Blueberry, Black-eyed Susan, Larkspur, Snapdragon, Strawflower, Sweet pea (flower)
Start seeds indoors
Eggplant, Tomatillo, Tomato (heat-set varieties), Anise hyssop, Bee balm (bergamot), Chives, Garlic chives, Marjoram, Oregano, Shiso (perilla), Winter savory, Cucamelon / mouse melon, Annual salvia, Marigold, Milkweed (native), Strawflower
February59
Best time to plant
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Pepper (hot / chili), Cucumber (slicing), Summer squash & zucchini, Bean (bush snap), Sweet corn, Radish
See all 59 crops in their best window in February
Best time to plant
Vegetables: Armenian cucumber, Artichoke, Bean (bush snap), Bean (dry / shelling), Bean (pole), Bitter melon, Cucumber (pickling), Cucumber (slicing), Garden cress, New Zealand spinach, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Radish, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Tomato (slicing), Watercress, Winter squash
Herbs: Anise hyssop, Bay laurel, Bee balm (bergamot), Borage, Catnip, Chives, Epazote, Feverfew, Garlic chives, Lavender, Lemon balm, Lovage, Marjoram, Mint, Oregano, Rosemary, Sage, Shiso (perilla), Sorrel (French / garden), Summer savory, Tarragon (French), Thyme, Winter savory
Fruit: Cucamelon / mouse melon, Fig, Ground cherry, Muscadine grape, Passion fruit
Flowers: Black-eyed Susan, Milkweed (native), Nasturtium, Purple coneflower (echinacea), Statice, Strawflower
Can also plant
Arugula, Asparagus, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Cabbage, Carrot, Cauliflower, Celery, Chickpea / garbanzo, Chinese broccoli (gai lan), Collard greens, Daikon radish, Fennel (bulb), Green onion / scallion, Kale, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, Napa / Chinese cabbage, Pea (shelling / English), Pea (snap & snow), Potato, Shallot, Spinach, Sunchoke (Jerusalem artichoke), Taro (dasheen), Turnip, Caraway, Chamomile, Chervil, Cilantro, Dill, Fenugreek (methi), Lemon verbena, Parsley, Vietnamese coriander (rau ram), Blackberry, Blueberry, Annual salvia, Bachelor's button (cornflower), Calendula, California poppy, Cleome (spider flower), Coreopsis (tickseed), Marigold, Pansy / viola, Stock, Sunflower, Sweet alyssum
Start seeds indoors
Malabar spinach, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold
March22
Best time to plant
Eggplant, Watermelon, Basil
See all 22 crops in their best window in March
Best time to plant
Vegetables: Amaranth greens / callaloo, Bean (lima), Edamame, Eggplant, Purslane, Taro (dasheen), Tomato (heat-set varieties), Winter melon / wax gourd
Herbs: Basil, Lemon verbena, Marjoram, Papalo, Stevia, Vietnamese coriander (rau ram)
Fruit: Cantaloupe & melons, Watermelon
Flowers: Annual salvia, Black-eyed Susan, Cleome (spider flower), Marigold, Strawflower, Sunflower
Can also plant
Armenian cucumber, Arugula, Bean (bush snap), Bean (dry / shelling), Bean (pole), Beet, Bitter melon, Broccoli raab (rapini), Carrot, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Garden cress, Kale, Kohlrabi, Komatsuna (mustard spinach), Lettuce (leaf & mesclun), Mustard greens, Napa / Chinese cabbage, New Zealand spinach, Pepper (hot / chili), Pepper (sweet / bell), Popcorn, Pumpkin, Radish, Shallot, Summer squash & zucchini, Sweet corn, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Tomato (slicing), Turnip, Winter squash, Anise hyssop, Bay laurel, Bee balm (bergamot), Borage, Chamomile, Chives, Cuban oregano, Dill, Epazote, Fenugreek (methi), Feverfew, Garlic chives, Lavender, Oregano, Parsley, Rosemary, Sage, Shiso (perilla), Summer savory, Tarragon (French), Thyme, Winter savory, Cucamelon / mouse melon, Fig, Ground cherry, Passion fruit, Pineapple, Calendula, Cosmos, Globe amaranth (gomphrena), Milkweed (native), Nasturtium, Purple coneflower (echinacea), Statice, Sweet alyssum, Zinnia
Start seeds indoors
Ginger, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster)
April27
Best time to plant
Okra
Start seeds indoors
Sweet potato
See all 27 crops in their best window in April
Best time to plant
Vegetables: Bottle gourd / cucuzza, Cassava (yuca), Chaya (tree spinach), Luffa gourd, Malabar spinach, Moringa, Okinawa spinach, Okra, Peanut, Seminole pumpkin / calabaza, Southern pea / cowpea, Taro (dasheen), Winged bean, Yardlong bean
Herbs: Cuban oregano, Culantro, Stevia
Fruit: Banana, Pineapple
Flowers: Annual salvia, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Sunflower, Zinnia
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (lima), Bean (pole), Bitter melon, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Garden cress, Ginger, Jicama, New Zealand spinach, Pepper (hot / chili), Pepper (sweet / bell), Pigeon pea, Purslane, Radish, Roselle, Summer squash & zucchini, Sweet corn, Sweet potato, Swiss chard, Tomatillo, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Winter melon / wax gourd, Basil, Borage, Epazote, Lemongrass, Papalo, Shiso (perilla), Summer savory, Cucamelon / mouse melon, Ground cherry, Passion fruit, Black-eyed Susan, Pentas (Egyptian star cluster)
Start seeds indoors
Roselle, Sweet potato
May9
Start seeds indoors
Sweet potato
See all 9 crops in their best window in May
Best time to plant
Vegetables: Cassava (yuca), Chaya (tree spinach), Ginger, Jicama, Pigeon pea, Roselle
Herbs: Lemongrass
Fruit: Banana
Flowers: Pentas (Egyptian star cluster)
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Bottle gourd / cucuzza, Edamame, Eggplant, Luffa gourd, Malabar spinach, Moringa, New Zealand spinach, Okinawa spinach, Okra, Peanut, Pepper (hot / chili), Purslane, Seminole pumpkin / calabaza, Southern pea / cowpea, Sweet potato, Tomato (heat-set varieties), Winged bean, Winter melon / wax gourd, Yardlong bean, Basil, Culantro, Epazote, Papalo, Shiso (perilla), Cucamelon / mouse melon, Pineapple, Annual salvia, Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Sunflower, Zinnia
Start seeds indoors
Roselle, Sweet potato, Annual salvia, Globe amaranth (gomphrena), Pentas (Egyptian star cluster)
June3
Best time to plant
Sweet potato
Start seeds indoors
Sweet potato
See all 3 crops in their best window in June
Best time to plant
Vegetables: Pigeon pea, Roselle, Sweet potato
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Bottle gourd / cucuzza, Edamame, Eggplant, Jicama, Luffa gourd, New Zealand spinach, Okra, Peanut, Pepper (hot / chili), Pumpkin, Purslane, Seminole pumpkin / calabaza, Southern pea / cowpea, Tomato (heat-set varieties), Winged bean, Winter melon / wax gourd, Yardlong bean, Basil, Epazote, Papalo, Shiso (perilla), Cucamelon / mouse melon, Annual salvia, Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster), Sunflower, Zinnia
Start seeds indoors
Celery, Sweet potato, Annual salvia, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster)
July9
Best time to plant
Sweet potato
Start seeds indoors
Tomato (slicing), Pepper (sweet / bell), Pepper (hot / chili), Eggplant, Onion (bulbing)
See all 9 crops in their best window in July
Best time to plant
Vegetables: Sweet potato
Flowers: Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster), Sunflower, Zinnia
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Bottle gourd / cucuzza, Celeriac (celery root), Celery, Collard greens, Cucumber (slicing), Edamame, Eggplant, Luffa gourd, New Zealand spinach, Okra, Peanut, Pepper (hot / chili), Pepper (sweet / bell), Pigeon pea, Pumpkin, Purslane, Seminole pumpkin / calabaza, Shallot, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Swiss chard, 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, Basil, Epazote, Papalo, Parsley, Shiso (perilla), Cantaloupe & melons, Cucamelon / mouse melon, Watermelon, Annual salvia, Celosia
Start seeds indoors
Celeriac (celery root), Celery, Eggplant, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Parsley, Annual salvia, Celosia, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster), Statice, Strawflower
August15
Best time to plant
Watermelon, Sweet potato
Start seeds indoors
Tomato (slicing), Tomato (cherry & grape), Onion (bulbing), Basil
See all 15 crops in their best window in August
Best time to plant
Vegetables: Pumpkin, Seminole pumpkin / calabaza, Sweet potato, Winter melon / wax gourd, Winter squash
Fruit: Watermelon
Flowers: Annual salvia, Black-eyed Susan, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Pentas (Egyptian star cluster), Sunflower, Zinnia
Can also plant
Amaranth greens / callaloo, Armenian cucumber, Bean (bush snap), Bean (dry / shelling), Bean (lima), Bean (pole), Beet, Bitter melon, Bottle gourd / cucuzza, Cardoon, Carrot, Celeriac (celery root), Celery, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, Kale, Komatsuna (mustard spinach), Leek, Luffa gourd, New Zealand spinach, Okra, Parsnip, Pepper (hot / chili), Pepper (sweet / bell), Potato, Purslane, Salsify, Shallot, Southern pea / cowpea, Summer squash & zucchini, Sweet corn, Swiss chard, Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Winged bean, Yardlong bean, Basil, Borage, Caraway, Chamomile, Dill, Epazote, Papalo, Parsley, Shiso (perilla), Cantaloupe & melons, Cucamelon / mouse melon, Calendula, Celosia, Coreopsis (tickseed), Nasturtium, Statice, Strawflower, Sweet alyssum
Start seeds indoors
Cardoon, Celeriac (celery root), Celery, Leek, Onion (bulbing), Tomato (cherry & grape), Tomato (early / short-season), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Basil, Parsley, Annual salvia, Marigold, Pansy / viola, Snapdragon, Statice, Stock, Strawflower
September43
Best time to plant
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Pepper (hot / chili), Eggplant, Cucumber (slicing), Watermelon, Sweet corn, Okra, Onion (bulbing), Basil, Strawberry
Start seeds indoors
Broccoli, Cabbage, Onion (bulbing)
See all 43 crops in their best window in September
Best time to plant
Vegetables: Armenian cucumber, Bean (dry / shelling), Bean (lima), Bean (pole), Bitter melon, Celeriac (celery root), Celery, Cucumber (pickling), Cucumber (slicing), Edamame, Eggplant, New Zealand spinach, Okra, Onion (bulbing), Pepper (hot / chili), Pepper (sweet / bell), Shallot, Southern pea / cowpea, Sweet corn, Swiss chard, Tomato (cherry & grape), Tomato (heat-set varieties), Tomato (paste / determinate), Tomato (slicing), Yardlong bean
Herbs: Basil, Parsley
Fruit: Cantaloupe & melons, Strawberry, Watermelon
Flowers: Annual salvia, Black-eyed Susan, Celosia, Cleome (spider flower), Cosmos, Globe amaranth (gomphrena), Marigold, Nasturtium, Pentas (Egyptian star cluster), Statice, Strawflower, Sunflower, Zinnia
Can also plant
Amaranth greens / callaloo, Arugula, Bean (bush snap), Beet, Bok choy / pak choi, Bottle gourd / cucuzza, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Cauliflower, Chinese broccoli (gai lan), Collard greens, Daikon radish, Fennel (bulb), Garden cress, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, Napa / Chinese cabbage, Parsnip, Pea (shelling / English), Pea (snap & snow), Potato, Purslane, Radish, Salsify, Spinach, Summer squash & zucchini, Tomato (early / short-season), Turnip, Borage, Caraway, Chamomile, Chervil, Cilantro, Dill, Epazote, Fenugreek (methi), Papalo, Shiso (perilla), Cucamelon / mouse melon, Bachelor's button (cornflower), Calendula, California poppy, Coreopsis (tickseed), Larkspur, Snapdragon, Stock, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Cardoon, Cauliflower, Celeriac (celery root), Celery, Leek, Lettuce (romaine & head), Onion (bulbing), Parsley, Pansy / viola, Snapdragon, Statice, Stock, Strawflower
October70
Best time to plant
Tomato (cherry & grape), Cucumber (slicing), Summer squash & zucchini, Bean (bush snap), Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Kale, Collard greens, Broccoli, Cabbage, Carrot, Onion (bulbing), Garlic, Basil, Cilantro, Strawberry
Start seeds indoors
Broccoli, Cabbage
See all 70 crops in their best window in October
Best time to plant
Vegetables: Amaranth greens / callaloo, Arugula, Bean (bush snap), Bean (pole), Beet, Bitter melon, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Cauliflower, Celeriac (celery root), Celery, Chinese broccoli (gai lan), Collard greens, Cucumber (pickling), Cucumber (slicing), Daikon radish, Elephant garlic, Fennel (bulb), Garlic, Kale, Kohlrabi, Komatsuna (mustard spinach), Leek, Lettuce (leaf & mesclun), Lettuce (romaine & head), Mustard greens, Napa / Chinese cabbage, New Zealand spinach, Onion (bulbing), Parsnip, Pea (shelling / English), Pea (snap & snow), Potato, Purslane, Rutabaga, Salsify, Shallot, Summer squash & zucchini, Swiss chard, Tomato (cherry & grape), Tomato (early / short-season), Turnip
Herbs: Basil, Borage, Caraway, Chamomile, Cilantro, Dill, Epazote, Fenugreek (methi), Parsley
Fruit: Strawberry
Flowers: Annual salvia, Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Coreopsis (tickseed), Larkspur, Marigold, Nasturtium, Snapdragon, Statice, Strawflower, Sweet alyssum, Sweet pea (flower)
Can also plant
Bok choy / pak choi, Endive & escarole, Fava bean, Garden cress, Mache (corn salad), Radish, Spinach, Chervil, Pansy / viola, Pentas (Egyptian star cluster), Stock
Start seeds indoors
Broccoli, Brussels sprouts, Cabbage, Cardoon, Cauliflower, Celeriac (celery root), Leek, Lettuce (romaine & head), Parsley, Pansy / viola, Snapdragon, Statice, Stock, Strawflower
November65
Best time to plant
Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Garlic, Cilantro, Strawberry
Start seeds indoors
Broccoli, Cabbage
See all 65 crops in their best window in November
Best time to plant
Vegetables: Amaranth greens / callaloo, Arugula, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Cauliflower, Celeriac (celery root), Celery, Chinese broccoli (gai lan), Collard greens, Daikon radish, Elephant garlic, Endive & escarole, Fava bean, Fennel (bulb), 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), Potato, Radish, Rutabaga, Salsify, Shallot, Spinach, Swiss chard, Turnip
Herbs: Borage, Caraway, Chamomile, Chervil, Cilantro, Dill, Fenugreek (methi), Parsley
Fruit: Strawberry
Flowers: Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Statice, Stock, Strawflower, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Artichoke, Broccoli, Brussels sprouts, Cabbage, Cauliflower, Lettuce (romaine & head), Lavender, Parsley, Rosemary, Purple coneflower (echinacea), Statice, Stock
December62
Best time to plant
Potato, Pea (snap & snow), Lettuce (leaf & mesclun), Spinach, Kale, Collard greens, Broccoli, Cabbage, Carrot, Radish, Onion (bulbing), Cilantro
Start seeds indoors
Tomato (slicing), Tomato (cherry & grape), Pepper (sweet / bell), Pepper (hot / chili)
See all 62 crops in their best window in December
Best time to plant
Vegetables: Arugula, Beet, Bok choy / pak choi, Broccoli, Broccoli raab (rapini), Brussels sprouts, Cabbage, Cardoon, Carrot, Cauliflower, Celeriac (celery root), Celery, Chinese broccoli (gai lan), Collard greens, Daikon radish, Endive & escarole, Fava bean, Fennel (bulb), 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), Potato, Radish, Rutabaga, Salsify, Shallot, Spinach, Swiss chard, Turnip
Herbs: Borage, Caraway, Chamomile, Chervil, Cilantro, Dill, Fenugreek (methi), Parsley
Fruit: Blueberry
Flowers: Bachelor's button (cornflower), Black-eyed Susan, Calendula, California poppy, Coreopsis (tickseed), Larkspur, Pansy / viola, Snapdragon, Statice, Stock, Strawflower, Sweet alyssum, Sweet pea (flower)
Start seeds indoors
Artichoke, Lettuce (romaine & head), Pepper (hot / chili), Pepper (sweet / bell), Tomato (cherry & grape), Tomato (early / short-season), Tomato (paste / determinate), Tomato (slicing), Anise hyssop, Bee balm (bergamot), Catnip, Chives, Feverfew, Garlic chives, Lavender, Lemon balm, Lovage, Marjoram, Oregano, Rosemary, Sage, Thyme, Winter savory, Ground cherry, Passion fruit, Purple coneflower (echinacea), Statice, Strawflower
Every crop that grows in Jacksonville
170 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 | Mar 6–20, Oct 18–Nov 7 | Mar 21–Oct 17 | — | Sow seeds |
| Armenian cucumber | Feb 8–22, Sep 16–Oct 6 | Feb 23–Sep 15 | — | Sow seeds |
| Artichoke | Jan 18–Feb 12 | — | Nov 16–Dec 11 | Set out plants |
| Arugula | Oct 21–Feb 2 | Feb 3–Apr 1, Sep 5–Oct 20 | — | Sow seeds |
| Asparagus | Jan 4–Feb 1 | Feb 2–Mar 1 | — | Set out plants |
| Bean (bush snap) | Feb 3–17, Sep 30–Oct 21 | Feb 18–Apr 23, Jul 25–Sep 29 | — | Sow seeds |
| Bean (dry / shelling) | Feb 3–17, Aug 26–Sep 16 | Feb 18–Apr 3, Jun 26–Aug 25 | — | Sow seeds |
| Bean (lima) | Mar 6–20, Sep 1–21 | Mar 21–May 1, Jun 27–Aug 31 | — | Sow seeds |
| Bean (pole) | Feb 3–17, Sep 20–Oct 11 | Feb 18–Apr 16, Jul 8–Sep 19 | — | Sow seeds |
| Beet | Oct 12–Jan 27 | Jan 28–Mar 20, Aug 17–Oct 11 | — | Sow seeds |
| Bitter melon | Feb 8–22, Sep 18–Oct 9 | Feb 23–Apr 18, Jul 12–Sep 17 | — | Sow seeds |
| Bok choy / pak choi | Oct 26–Jan 15 | Jan 16–Mar 1, Sep 20–Oct 25 | — | Sow seeds |
| Bottle gourd / cucuzza | Apr 1–15 | Apr 16–Sep 22 | — | Sow seeds |
| Broccoli | Oct 19–Jan 12 | Jan 13–Feb 27, Sep 10–Oct 18 | Sep 7–Dec 1 | Set out plants |
| Broccoli raab (rapini) | Oct 23–Jan 22 | Jan 23–Mar 12, Sep 10–Oct 22 | — | Sow seeds |
| Brussels sprouts | Oct 13–Dec 22 | Sep 10–Oct 12, Dec 23–Jan 29 | Sep 1–Nov 10 | Set out plants |
| Cabbage | Oct 13–Jan 15 | Jan 16–Mar 2, Aug 26–Oct 12 | Sep 1–Dec 4 | Set out plants |
| Cardoon | Sep 29–Dec 13 | Aug 17–Sep 28, Dec 14–Jan 14 | Jul 28–Oct 11 | Set out plants |
| Carrot | Oct 10–Jan 21 | Jan 22–Mar 12, Aug 17–Oct 9 | — | Sow seeds |
| Cassava (yuca) | Apr 1–May 27 | — | — | Set out plants |
| Cauliflower | Oct 21–Jan 16 | Jan 17–Mar 3, Sep 10–Oct 20 | Sep 9–Dec 5 | Set out plants |
| Celeriac (celery root) | Sep 17–Jan 5 | Jan 6–Feb 9, Jul 3–Sep 16 | Jul 2–Oct 20 | Set out plants |
| Celery | Aug 30–Dec 15 | Jul 15–Aug 29, Dec 16–Feb 20 | Jun 14–Sep 29 | Set out plants |
| Chaya (tree spinach) | Apr 1–May 27 | — | — | Set out plants |
| Chickpea / garbanzo | Jan 15–Feb 4 | Feb 5–24 | — | Sow seeds |
| Chinese broccoli (gai lan) | Oct 7–Jan 29 | Jan 30–Mar 21, Aug 5–Oct 6 | — | Sow seeds |
| Collard greens | Sep 28–Feb 2 | Feb 3–Mar 30, Jul 19–Sep 27 | — | Sow seeds |
| Cucumber (pickling) | Feb 8–22, Sep 23–Oct 14 | Feb 23–Apr 23, Jul 23–Sep 22 | — | Sow seeds |
| Cucumber (slicing) | Feb 8–22, Sep 21–Oct 11 | Feb 23–Apr 20, Jul 16–Sep 20 | — | Sow seeds |
| Daikon radish | Oct 25–Jan 11 | Jan 12–Feb 23, Sep 20–Oct 24 | — | Sow seeds |
| Edamame | Mar 6–20, Sep 3–23 | Mar 21–May 24, Jun 4–Sep 2 | — | Sow seeds |
| Eggplant | Mar 6–20, Sep 6–26 | Mar 21–Sep 5 | Jan 2–16, Jul 5–25 | Set out plants |
| Elephant garlic | Oct 2–Dec 1 | — | — | Sow seeds |
| Endive & escarole | Oct 26–Dec 24 | Sep 30–Oct 25, Dec 25–Jan 27 | — | Sow seeds |
| Fava bean | Oct 29–Dec 11 | Oct 12–28, Dec 12–Jan 6 | — | Sow seeds |
| Fennel (bulb) | Oct 23–Jan 4 | Jan 5–Feb 14, Sep 20–Oct 22 | — | Sow seeds |
| Garden cress | Nov 4–Feb 15 | Feb 16–Apr 16, Sep 21–Nov 3 | — | Sow seeds |
| Garlic | Oct 2–Dec 1 | — | — | Sow seeds |
| Ginger | Apr 26–May 18 | Apr 1–25, May 19–27 | Mar 8–30 | Set out plants |
| Green onion / scallion | Jan 4–Feb 1 | Feb 2–Mar 1 | — | Sow seeds |
| Jicama | May 2–Jun 6 | Apr 1–May 1, Jun 7–11 | — | Sow seeds |
| Kale | Oct 12–Jan 27 | Jan 28–Mar 19, Aug 17–Oct 11 | — | Sow seeds |
| Kohlrabi | Oct 18–Jan 29 | Jan 30–Mar 23, Aug 28–Oct 17 | — | Sow seeds |
| Komatsuna (mustard spinach) | Oct 13–Feb 3 | Feb 4–Apr 3, Aug 19–Oct 12 | — | Sow seeds |
| Leek | Oct 2–Dec 28 | Aug 17–Oct 1, Dec 29–Feb 8 | Jul 31–Oct 26 | Set out plants |
| Lettuce (leaf & mesclun) | Oct 18–Jan 29 | Jan 30–Mar 24, Aug 29–Oct 17 | — | Sow seeds |
| Lettuce (romaine & head) | Oct 21–Jan 16 | Jan 17–Mar 3, Sep 10–Oct 20 | Sep 16–Dec 12 | Set out plants |
| Luffa gourd | Apr 1–15 | Apr 16–Aug 25 | — | Sow seeds |
| Mache (corn salad) | Nov 3–Jan 3 | Jan 4–Feb 8, Oct 8–Nov 2 | — | Sow seeds |
| Malabar spinach | Apr 1–15 | Apr 16–May 27 | Feb 11–25 | Set out plants |
| Moringa | Apr 1–15 | Apr 16–May 27 | — | Sow seeds |
| Mustard greens | Oct 24–Jan 26 | Jan 27–Mar 18, Sep 10–Oct 23 | — | Sow seeds |
| Napa / Chinese cabbage | Oct 14–Jan 20 | Jan 21–Mar 10, Aug 26–Oct 13 | — | Sow seeds |
| New Zealand spinach | Feb 3–17, Sep 23–Oct 13 | Feb 18–Sep 22 | — | Sow seeds |
| Okinawa spinach | Apr 1–15 | Apr 16–May 27 | — | Set out plants |
| Okra | Apr 1–15, Sep 21–Oct 2 | Apr 16–Sep 20 | — | Sow seeds |
| Onion (bulbing) | Sep 16–Dec 16 | — | Jul 1–Sep 30 | Set out plants |
| Parsnip | Oct 1–Dec 26 | Aug 17–Sep 30, Dec 27–Feb 6 | — | Sow seeds |
| Pea (shelling / English) | Oct 21–Jan 16 | Jan 17–Mar 3, Sep 10–Oct 20 | — | Sow seeds |
| Pea (snap & snow) | Oct 20–Jan 14 | Jan 15–Mar 2, Sep 10–Oct 19 | — | Sow seeds |
| Peanut | Apr 1–15 | Apr 16–Jul 31 | — | Sow seeds |
| Pepper (hot / chili) | Feb 16–Mar 2, Aug 29–Sep 19 | Mar 3–Aug 28 | Jun 27–Jul 18, Dec 15–29 | Set out plants |
| Pepper (sweet / bell) | Feb 15–Mar 1, Sep 8–29 | Mar 2–Apr 12, Jul 3–Sep 7 | Jul 7–28, Dec 14–28 | Set out plants |
| Pigeon pea | May 2–Jun 25 | Apr 1–May 1, Jun 26–Jul 18 | — | Sow seeds |
| Popcorn | Feb 8–15 | Feb 16–Mar 27 | — | Sow seeds |
| Potato | Sep 28–Jan 15 | Jan 16–Feb 28, Jul 24–Sep 27 | — | Sow seeds |
| Pumpkin | Feb 8–22, Aug 4–25 | Feb 23–Mar 26, Jun 13–Aug 3 | — | Sow seeds |
| Purslane | Mar 6–20, Sep 29–Oct 20 | Mar 21–Sep 28 | — | Sow seeds |
| Radicchio | Jan 4–19 | Jan 20–Feb 4 | — | Sow seeds |
| Radish | Nov 1–Feb 12 | Feb 13–Apr 13, Sep 18–Oct 31 | — | Sow seeds |
| Roselle | May 3–Jun 15 | Apr 1–May 2, Jun 16–26 | Mar 29–May 11 | Set out plants |
| Rutabaga | Oct 23–Dec 16 | Sep 30–Oct 22, Dec 17–Jan 16 | — | Sow seeds |
| Salsify | Sep 28–Dec 16 | Aug 17–Sep 27, Dec 17–Jan 22 | — | Sow seeds |
| Seminole pumpkin / calabaza | Apr 1–15, Aug 2–22 | Apr 16–Aug 1 | — | Sow seeds |
| Shallot | Sep 19–Jan 24 | Jan 25–Mar 12, Jul 1–Sep 18 | — | Sow seeds |
| Southern pea / cowpea | Apr 1–15, Sep 3–22 | Apr 16–Sep 2 | — | Sow seeds |
| Spinach | Oct 27–Jan 18 | Jan 19–Mar 5, Sep 20–Oct 26 | — | Sow seeds |
| Summer squash & zucchini | Feb 8–22, Sep 26–Oct 16 | Feb 23–Apr 22, Jul 19–Sep 25 | — | Sow seeds |
| Sunchoke (Jerusalem artichoke) | Jan 15–Feb 5 | Jan 11–14, Feb 6–22 | — | Sow seeds |
| Sweet corn | Feb 8–15, Sep 8–28 | Feb 16–Apr 11, Jul 9–Sep 7 | — | Sow seeds |
| Sweet potato | May 29–Aug 10 | Apr 1–May 28, Aug 11–25 | Apr 10–Jun 22 | Set out plants |
| Swiss chard | Sep 24–Feb 17 | Feb 18–Apr 30, Jul 11–Sep 23 | — | Sow seeds |
| Taro (dasheen) | Mar 20–May 4 | Feb 3–Mar 19 | — | Sow seeds |
| Tomatillo | Feb 8–22 | Feb 23–Apr 26 | Dec 28–Jan 11 | Set out plants |
| Tomato (cherry & grape) | Feb 8–22, Sep 23–Oct 13 | Feb 23–Apr 17, Jul 10–Sep 22 | Aug 5–25, Dec 21–Jan 4 | Set out plants |
| Tomato (early / short-season) | Feb 8–15, Sep 28–Oct 18 | Feb 16–Apr 20, Jul 19–Sep 27 | Aug 10–30, Dec 21–28 | Set out plants |
| Tomato (heat-set varieties) | Mar 6–20, Sep 10–Oct 1 | Mar 21–Sep 9 | Jan 16–30, Jul 23–Aug 13 | Set out plants |
| Tomato (paste / determinate) | Feb 8–22, Sep 10–Oct 1 | Feb 23–Apr 11, Jul 5–Sep 9 | Jul 23–Aug 13, Dec 21–Jan 4 | Set out plants |
| Tomato (slicing) | Feb 8–22, Sep 8–28 | Feb 23–Apr 9, Jun 27–Sep 7 | Jul 21–Aug 10, Dec 21–Jan 4 | Set out plants |
| Turnip | Oct 18–Jan 29 | Jan 30–Mar 23, Aug 28–Oct 17 | — | Sow seeds |
| Watercress | Jan 11–Feb 8 | Feb 9–Mar 8 | — | Sow seeds |
| Winged bean | Apr 1–15 | Apr 16–Aug 25 | — | Sow seeds |
| Winter melon / wax gourd | Mar 6–20, Aug 4–25 | Mar 21–Aug 3 | — | Sow seeds |
| Winter squash | Feb 8–22, Aug 14–Sep 4 | Feb 23–Apr 1, Jun 22–Aug 13 | — | Sow seeds |
| Yardlong bean | Apr 1–15, Sep 8–22 | Apr 16–Sep 7 | — | Sow seeds |
Herbs
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Anise hyssop | Feb 1–Mar 1 | Mar 2–29 | Dec 18–Jan 15 | Set out plants |
| Basil | Mar 6–13, Sep 21–Oct 11 | Mar 14–Sep 20 | Jan 30–Feb 6, Aug 17–Sep 6 | Set out plants |
| Bay laurel | Feb 8–Mar 4 | Mar 5–29 | — | Set out plants |
| Bee balm (bergamot) | Feb 1–Mar 1 | Mar 2–29 | Dec 14–Jan 11 | Set out plants |
| Borage | Oct 4–Feb 7 | Feb 8–Apr 10, Aug 1–Oct 3 | — | Sow seeds |
| Caraway | Oct 8–Jan 14 | Jan 15–Mar 2, Aug 17–Oct 7 | — | Sow seeds |
| Catnip | Jan 18–Feb 8 | Feb 9–Mar 1 | Nov 30–Dec 21 | Set out plants |
| Chamomile | Oct 10–Jan 22 | Jan 23–Mar 14, Aug 17–Oct 9 | — | Sow seeds |
| Chervil | Oct 26–Jan 14 | Jan 15–Feb 28, Sep 20–Oct 25 | — | Sow seeds |
| Chives | Feb 1–Mar 1 | Mar 2–29 | Dec 14–Jan 11 | Set out plants |
| Cilantro | Oct 21–Jan 17 | Jan 18–Mar 6, Sep 10–Oct 20 | — | Sow seeds |
| Cuban oregano | Apr 3–May 1 | Mar 6–Apr 2 | — | Set out plants |
| Culantro | Apr 1–15 | Apr 16–May 27 | — | Sow seeds |
| Dill | Oct 14–Feb 1 | Feb 2–Mar 27, Aug 18–Oct 13 | — | Sow seeds |
| Epazote | Feb 8–22, Oct 5–26 | Feb 23–Oct 4 | — | Sow seeds |
| Fenugreek (methi) | Oct 20–Feb 3 | Feb 4–Apr 6, Sep 5–Oct 19 | — | Sow seeds |
| Feverfew | Jan 25–Feb 22 | Feb 23–Mar 22 | Dec 7–Jan 4 | Set out plants |
| Garlic chives | Feb 1–Mar 1 | Mar 2–29 | Dec 14–Jan 11 | Set out plants |
| Lavender | Feb 8–28 | Mar 1–21 | Nov 23–Dec 13 | Set out plants |
| Lemon balm | Jan 18–Feb 8 | Feb 9–Mar 1 | Dec 14–Jan 4 | Set out plants |
| Lemon verbena | Mar 1–25 | Feb 8–28, Mar 26–29 | — | Set out plants |
| Lemongrass | Apr 26–May 17 | Apr 1–25, May 18–27 | — | Set out plants |
| Lovage | Jan 18–Feb 8 | Feb 9–Mar 1 | Nov 30–Dec 21 | Set out plants |
| Marjoram | Feb 11–Mar 7 | Feb 8–10, Mar 8–29 | Dec 24–Jan 17 | Set out plants |
| Mint | Jan 18–Feb 8 | Feb 9–Mar 1 | — | Set out plants |
| Oregano | Feb 1–Mar 1 | Mar 2–29 | Dec 14–Jan 11 | Set out plants |
| Papalo | Mar 6–20 | Mar 21–Oct 1 | — | Sow seeds |
| Parsley | Sep 24–Jan 29 | Jan 30–Mar 23, Jul 11–Sep 23 | Jul 23–Nov 27 | Set out plants |
| Rosemary | Feb 8–Mar 4 | Mar 5–29 | Nov 23–Dec 17 | Set out plants |
| Sage | Jan 25–Feb 22 | Feb 23–Mar 22 | Dec 7–Jan 4 | Set out plants |
| Shiso (perilla) | Feb 8–15 | Feb 16–Oct 8 | Jan 4–11 | Set out plants |
| Sorrel (French / garden) | Jan 11–Feb 8 | Feb 9–Mar 8 | — | Sow seeds |
| Stevia | Mar 23–Apr 16 | Mar 6–22, Apr 17–24 | — | Set out plants |
| Summer savory | Feb 1–15 | Feb 16–Apr 23 | — | Sow seeds |
| Tarragon (French) | Feb 1–24 | Feb 25–Mar 20 | — | Set out plants |
| Thyme | Feb 1–Mar 1 | Mar 2–29 | Dec 7–Jan 4 | Set out plants |
| Vietnamese coriander (rau ram) | Mar 8–Apr 5 | Feb 8–Mar 7 | — | Set out plants |
| Winter savory | Feb 1–Mar 1 | Mar 2–29 | Dec 14–Jan 11 | Set out plants |
Fruit
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Banana | Apr 1–May 27 | — | — | Set out plants |
| Blackberry | Dec 28–Jan 28 | Jan 29–Mar 1 | — | Set out plants |
| Blueberry | Dec 7–Jan 3 | Jan 4–Feb 22 | — | Set out plants |
| Cantaloupe & melons | Mar 6–20, Aug 27–Sep 16 | Mar 21–Apr 7, Jul 1–Aug 26 | — | Sow seeds |
| Cucamelon / mouse melon | Feb 8–22 | Feb 23–Oct 1 | Jan 4–18 | Set out plants |
| Fig | Jan 13–Feb 17 | Jan 11–12, Feb 18–Mar 22 | — | Set out plants |
| Ground cherry | Feb 8–22 | Feb 23–May 3 | Dec 21–Jan 4 | Set out plants |
| Muscadine grape | Jan 24–Feb 14 | Jan 11–23, Feb 15–22 | — | Set out plants |
| Passion fruit | Feb 3–Mar 1 | Mar 2–Apr 14 | Dec 2–28 | Set out plants |
| Pineapple | Mar 26–Apr 30 | Mar 6–25, May 1–15 | — | Set out plants |
| Strawberry | Sep 21–Dec 1 | — | — | Set out plants |
| Watermelon | Mar 6–20, Aug 24–Sep 14 | Mar 21–Apr 6, Jun 28–Aug 23 | — | Sow seeds |
Flowers
| Crop | Best time to plant | Also possible | Start indoors | How |
|---|---|---|---|---|
| Annual salvia | Mar 15–Apr 28, Jul 28–Oct 23 | Feb 3–Mar 14, Apr 29–Jul 27, Oct 24–26 | Jan 4–Feb 17, May 19–Aug 14 | Set out plants |
| Bachelor's button (cornflower) | Oct 19–Jan 10 | Jan 11–Feb 23, Sep 10–Oct 18 | — | Sow seeds |
| Black-eyed Susan | Feb 3–Mar 12, Jul 18–Dec 9 | Mar 13–Jul 17, Dec 10–Feb 2 | — | Sow seeds |
| Calendula | Oct 13–Jan 29 | Jan 30–Mar 22, Aug 17–Oct 12 | — | Sow seeds |
| California poppy | Oct 19–Jan 10 | Jan 11–Feb 23, Sep 10–Oct 18 | — | Sow seeds |
| Celosia | Apr 1–8, Aug 29–Sep 15 | Apr 9–Aug 28 | Feb 11–18, Jul 11–28 | Set out plants |
| Cleome (spider flower) | Mar 21–Apr 15, Jun 27–Sep 26 | Feb 3–Mar 20, Apr 16–Jun 26 | — | Sow seeds |
| Coreopsis (tickseed) | Oct 2–Jan 13 | Jan 14–Feb 27, Aug 5–Oct 1 | — | Sow seeds |
| Cosmos | Apr 3–28, Jul 2–Sep 21 | Mar 6–Apr 2, Apr 29–Jul 1, Sep 22–Oct 6 | — | Sow seeds |
| Globe amaranth (gomphrena) | Apr 9–May 5, Jun 26–Sep 14 | Mar 6–Apr 8, May 6–Jun 25, Sep 15–Oct 6 | Feb 19–Mar 17, May 8–Jul 27 | Set out plants |
| Larkspur | Oct 19–Dec 22 | Sep 20–Oct 18, Dec 23–Jan 26 | — | Sow seeds |
| Marigold | Mar 15–Apr 25, Jul 25–Oct 21 | Feb 3–Mar 14, Apr 26–Jul 24 | Jan 25–Mar 7, Jun 6–Sep 2 | Set out plants |
| Milkweed (native) | Feb 1–Mar 1 | Mar 2–29 | Dec 28–Jan 25 | Set out plants |
| Nasturtium | Feb 2–25, Sep 19–Oct 26 | Feb 1, Feb 26–Mar 24, Aug 17–Sep 18 | — | Sow seeds |
| Pansy / viola | Oct 31–Jan 13 | Jan 14–Feb 25, Sep 30–Oct 30 | Aug 15–Oct 28 | Set out plants |
| Pentas (Egyptian star cluster) | Apr 28–Jun 2, Jul 21–Sep 22 | Apr 1–27, Jun 3–Jul 20, Sep 23–Oct 17 | Feb 24–Mar 31, May 19–Jul 21 | Set out plants |
| Purple coneflower (echinacea) | Feb 1–Mar 1 | Mar 2–29 | Nov 16–Dec 14 | Set out plants |
| Snapdragon | Oct 19–Dec 22 | Sep 20–Oct 18, Dec 23–Jan 26 | Aug 17–Oct 20 | Set out plants |
| Statice | Jan 19–Feb 12, Sep 22–Dec 24 | Feb 13–Mar 27, Aug 3–Sep 21, Dec 25–Jan 18 | Jul 21–Oct 22, Nov 17–Dec 11 | Set out plants |
| Stock | Oct 26–Jan 14 | Jan 15–Feb 28, Sep 20–Oct 25 | Aug 24–Nov 12 | Set out plants |
| Strawflower | Feb 4–Mar 7, Sep 5–Dec 8 | Mar 8–Apr 9, Jul 31–Sep 4, Dec 9–Feb 3 | Jul 18–Oct 20, Dec 17–Jan 17 | Set out plants |
| Sunflower | Mar 13–Apr 12, Jul 2–Sep 21 | Feb 8–Mar 12, Apr 13–Jul 1 | — | Sow seeds |
| Sweet alyssum | Oct 13–Jan 30 | Jan 31–Mar 24, Aug 17–Oct 12 | — | Sow seeds |
| Sweet pea (flower) | Oct 21–Dec 27 | Sep 20–Oct 20, Dec 28–Feb 2 | — | Sow seeds |
| Zinnia | Apr 3–30, Jul 5–Sep 23 | Mar 6–Apr 2, May 1–Jul 4, Sep 24–Oct 8 | — | Sow seeds |
Crops that struggle in Jacksonville
These need a climate Jacksonville doesn't have. Pots, shade cloth or a greenhouse can stretch the rules.
- Grape (bunch): Pierce's disease kills bunch grapes where winters are mild and summers wet. Grow muscadines instead.
- Papaya: Has to live outdoors through winter and needs nights no colder than about 48°F; the coldest month here averages 47°F.
- Raspberry: Needs a real winter; nights in the coldest month here average 47°F.
- Rhubarb: Needs a real winter; nights in the coldest month here average 47°F.
Nearby planting calendars
- Gainesville, FL 62 mi · last frost around Mar 3
- Daytona Beach, FL 86 mi · frost only briefly in winter
- Orlando, FL 125 mi · frost only briefly in winter
- Savannah, GA 125 mi · last frost around Mar 2
- Tallahassee, FL 157 mi · last frost around Mar 11
- All Florida 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 Jacksonville NAS 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).