Planning path

Warm Season Garden Planner

Plan warm-season crops from local last frost, soil warmth, transplant timing, tender direct sowing, full sun, water access, and maturity windows.

Warm-season timing checks

Wait for frost-free warmth

Use the local last-frost date as the first screen, then wait for crop-appropriate air and soil warmth before planting tender crops outside.

Check soil temperature

Beans, corn, cucurbits, basil, and other heat-loving crops germinate and root better when soil is warm enough for that crop, not just when the calendar says spring.

Separate tender direct sowing and transplants

Direct sow crops that establish quickly in warm soil, and transplant long-season tomatoes, peppers, eggplants, and similar crops after hardening them off.

Harden and shelter starts

Move indoor-grown starts gradually into outdoor sun, wind, and night temperatures; use temporary protection when a cold snap or wind would stress young plants.

Plan long-season maturity

Check days to maturity against the expected frost-free season so slow warm-season crops have enough time to flower, fruit, and ripen.

Manage heat and water stress

Keep warm-season beds near reliable water, irrigate deeply during hot dry weather, and watch flowering and fruiting crops for stress during heat waves.

Regional warm-season checks

Pair warm-season catalog entries with regional frost-free timing, soil warmth, heat stress, transplant limits, and local spring/fall windows

• South Carolina Spring and Fall Garden Clemson checks for Coastal/Piedmont warm-season rows, freeze danger, and okra/tomato fall no-planting caveats
• Texas Home Vegetable Gardening Guide Texas A&M checks frost-free and first-freeze maps, early spring/fall maturity timing, and full-sun well-drained site fit
• Oklahoma Garden Planning Guide OSU checks 70-90F warm-season fit, 50F seed-depth soil minimum, and southeast-to-northwest date shifts
• California Interior Valley Vegetable Planting Guide UC checks 65-95F warm-season bands, local frost-date caveats, and Interior Valley warm-crop month rows

Warm-season seed candidates

• Black-Eyed Susan 90 days · Direct sow · direct sow 14 days before last frost
• Blanketflower 365 days · Direct sow · direct sow 14 days before last frost
• Canada Goldenrod 365 days · Direct sow · direct sow 14 days before last frost
• Clustered Mountain Mint 365 days · Direct sow · direct sow 14 days before last frost
• Common Milkweed 365 days · Direct sow · direct sow 14 days before last frost
• Dense Blazing Star 365 days · Either · transplant 14 days after last frost
• Eastern Bee Balm 365 days · Either · transplant 14 days after last frost
• Foxglove Beardtongue 365 days · Direct sow · direct sow 14 days before last frost
• Joe Pye Weed 365 days · Either · transplant 14 days after last frost
• Lanceleaf Coreopsis 365 days · Direct sow · direct sow 14 days before last frost
• Little Bluestem 365 days · Direct sow · direct sow 14 days before last frost
• New England Aster 365 days · Direct sow · direct sow 14 days before last frost
• Purple Coneflower 365 days · Either · transplant 14 days after last frost
• Swamp Milkweed 365 days · Direct sow · direct sow 14 days before last frost
• German Chamomile 60 days · Direct sow · direct sow on last frost
• French Marigold 55 days · Either · transplant 7 days after last frost
• Common Borage 60 days · Direct sow · direct sow 7 days after last frost
• Common Summer Savory 60 days · Direct sow · direct sow 7 days after last frost
• Common Lemon Balm 70 days · Either · transplant 7 days after last frost
• California Giant Zinnia 75 days · Either · transplant 7 days after last frost
• Sensation Mix Cosmos 75 days · Direct sow · direct sow 7 days after last frost
• Florence Fennel 80 days · Either · transplant 7 days after last frost
• Tall Double Mix Strawflower 80 days · Either · transplant 7 days after last frost
• Indian Summer Rudbeckia 90 days · Either · transplant 7 days after last frost
• Mammoth Sunflower 90 days · Direct sow · direct sow 7 days after last frost
• Common Anise 120 days · Direct sow · direct sow 7 days after last frost
• Provider Bush Bean 50 days · Direct sow · direct sow 10 days after last frost
• Red Garnet Amaranth 45 days · Direct sow · direct sow 14 days after last frost
• Marketmore 76 Cucumber 58 days · Either · transplant 14 days after last frost
• Genovese Basil 68 days · Either · transplant 14 days after last frost
• Red Stem Malabar Spinach 70 days · Either · transplant 14 days after last frost
• Sorghum-Sudangrass Cover Crop 70 days · Direct sow · direct sow 14 days after last frost
• Toma Verde Tomatillo 70 days · Start indoors · transplant 14 days after last frost
• Broadleaf Sage 75 days · Start indoors · transplant 14 days after last frost
• Roma Tomato 76 days · Start indoors · transplant 14 days after last frost
• Envy Edamame Soybean 80 days · Direct sow · direct sow 14 days after last frost
• Golden Bantam Sweet Corn 80 days · Direct sow · direct sow 14 days after last frost
• Red Noodle Yardlong Bean 80 days · Direct sow · direct sow 14 days after last frost
• Sugar Baby Watermelon 80 days · Either · transplant 14 days after last frost
• Globe Amaranth Gomphrena 85 days · Either · transplant 14 days after last frost
• Grandiflora Petunia 85 days · Start indoors · transplant 14 days after last frost
• Hale's Best Jumbo Melon 85 days · Either · transplant 14 days after last frost
• Chief Mix Celosia 90 days · Start indoors · transplant 14 days after last frost
• Greek Oregano 90 days · Start indoors · transplant 14 days after last frost
• Munstead Lavender 90 days · Start indoors · transplant 14 days after last frost
• Tall Verbena 90 days · Start indoors · transplant 14 days after last frost
• Waltham Butternut Squash 95 days · Either · transplant 14 days after last frost
• Delicata Winter Squash 100 days · Either · transplant 14 days after last frost
• Small Sugar Pumpkin 100 days · Either · transplant 14 days after last frost
• Arp Rosemary 120 days · Start indoors · transplant 14 days after last frost
• Green Globe Artichoke 120 days · Start indoors · transplant 14 days after last frost
• Buckwheat Cover Crop 35 days · Direct sow · direct sow 21 days after last frost
• Clemson Spineless Okra 56 days · Direct sow · direct sow 21 days after last frost
• California Wonder Pepper 72 days · Start indoors · transplant 21 days after last frost
• Black Beauty Eggplant 80 days · Start indoors · transplant 21 days after last frost

Supporting planning paths

• Warm Season Seeds 55 catalog entries tagged warm season
• Direct Sow Garden Planner 43 warm-season entries can be direct sown
• Transplant Garden Planner 31 warm-season entries can be transplanted
• Container Garden Planner 37 warm-season entries also fit containers
• Quick Harvest Garden Planner 9 warm-season entries mature in 60 days or less
• Soil-Temperature Germination Planner Confirm warm-soil germination ranges before direct sowing tender crops or moving starts outside
• Frost Protection and Season Extension Planner Plan row cover, water-filled walls, and cold-snap protection before tender warm-season starts meet cold nights or wind
• Garden Watering Planner Plan deep irrigation, rainfall gaps, and soil checks before heat waves stress flowering or fruiting warm-season crops
• Planting Calendar Tool Map warm-season timing to last frost, soil warmth, and harvest estimates

Source basis

• Clemson Extension planning a garden Warm-season crop grouping, full-sun needs for fruiting crops, water access, and summer garden planning
• Cornell tomato growing guide 1 entry cites this source
• CSU vegetable planting guide 11 entries cite this source
• Oklahoma State University Extension Oklahoma Garden Planning Guide Oklahoma Garden Planning Guide regional warm-season source
• Penn State plant factsheets 4 entries cite this source
• Penn State planting for pollinators 2 entries cite this source
• Penn State pollinator recommendations 1 entry cites this source
• Seed Savers seed saving guide 14 entries cite this source
• Texas A&M AgriLife Texas Home Vegetable Gardening Guide Texas Home Vegetable Gardening Guide regional warm-season source
• UC Master Gardener Program Time of planting California Interior Valley Vegetable Planting Guide regional warm-season source
• UMD Extension wilting vegetable plants Heat, drought, water stress, flower and fruit stress, drainage, and deep watering guidance for vegetables
• UMN companion planting guide 2 entries cite this source
• UMN planting the vegetable garden 1 entry cites this source
• UMN starting seeds indoors 10 entries cite this source
• Wisconsin Extension cover crops and green manures 2 entries cite this source
• Xerces pollinator-friendly native plant lists 7 entries cite this source