Brought to you by garden.gg Zone 9a Planting Calendar & Schedule
USDA zone 9 has hot summers and mild, nearly frost-free winters, with an average annual minimum of 20-30°F and a growing season well over nine months. The limiting factor is summer heat, not cold, which inverts the calendar so cool-season crops flourish fall through spring while only heat-lovers persist in midsummer.
Zone 9a is the cooler half of USDA zone 9, where the average coldest winter night bottoms out at 20 to 25°F. Compared with the zone 9 averages, the last spring frost in zone 9a comes about a week later (Mar 7) and the first fall frost about a week earlier (Nov 28), for a growing season of about 266 days. Every planting window on this page is shifted to match: spring sowing and transplant dates move a week later, fall plantings a week earlier. Crop notes still quote zone 9 timing.
Zone 9 flips the calendar: with lows of only 20 to 30°F and 280 frost-free days, summer heat, not winter cold, is the limiting season. It covers central and coastal California, the Gulf Coast from Houston to New Orleans, central and north Florida, southern Texas, and Arizona's low desert valleys. Tomatoes go in the ground in late February, the garden rests or grows okra through the worst of summer, and a second season starts when temperatures break in late September.
States & regions in Zone 9: Central & coastal California, Gulf Coast (Houston, New Orleans area), Central & North Florida, Southern Texas, Southern Louisiana, Coastal Georgia & South Carolina (Lowcountry), Southern Arizona (low desert valleys)
Almost year-round. Almost paradise.
With 300+ frost-free days, zone 9 can grow food 10-11 months a year. The challenge isn't cold — it's heat management and pest pressure. Timing shifts earlier here: your tomato season starts in February and ends before the brutal summer.
Pro tip: Plant tomatoes in February for harvest by May. Start your fall garden by October when temps drop below 90°F.
Save a planting for your zone 9a garden — free
What to Plant in Zone 9a This Fall (September–November)
The average first fall frost in zone 9a is Nov 28. To find the last safe planting date for any fall crop, count back from that date by its days to maturity plus a 14-day fall factor — growth slows as days shorten and soil cools. Applied to zone 9a's frost date, that gives these plant-by dates:
Plant by Aug 26
80 days to maturity + 14-day fall factor
Plant by Aug 31
75 days to maturity + 14-day fall factor
Plant by Sep 5
70 days to maturity + 14-day fall factor
Plant by Sep 5
70 days to maturity + 14-day fall factor
Zone 9a and 9b: these dates count back from zone 9a's first frost, which is about a week earlier than the zone 9 average of Dec 5. Zone 9b gardeners have about two weeks more fall time — see the zone 9b fall dates.
Fall crops on this zone 9a calendar include Tomato, Bush Bean, Cucumber, Summer Squash, Winter Squash, Lettuce, Spinach, Kale, Swiss Chard, Collards, Mustard Greens, Arugula, and 19 more. Each crop's sowing and transplant window is in the fall planting section below.
For month-by-month detail, see what to plant in October across every zone, what to plant in September, and the fall vegetable planting guide by zone.
What to Plant by Season in Zone 9a
The right crops and methods for each season, based on zone 9a's climate and frost timing.
What to Plant in Spring
Spring in zone 9 is a fast, productive window between the late-February frost and the brutal heat that arrives by June, so warm-season crops should go in early and the last cool-season greens are squeezed in before they bolt. Get heat-lovers transplanted by mid-March to set fruit before summer night temperatures shut down pollination.
Feb 28 - Apr 7
Set out robust transplants right after last frost; choose heat-set varieties to keep fruiting as temps climb.
Mar 8 - Apr 17
Wait for soil to warm; peppers sulk in cold ground.
Mar 8 - May 7
Loves the heat; one of the best summer performers here.
Mar 8 - May 7
Plant at least two for cross-pollination.
Mar 8 - May 7
Mar 8 - May 7
Direct sow once soil hits 65°F; provide afternoon shade as heat builds.
Mar 8 - May 7
Plant early to harvest before squash vine borer and powdery mildew peak.
Mar 8 - May 7
Mar 8 - May 7
Needs the full hot season to ripen; sow as early as soil allows.
Mar 8 - May 7
Apr 8 - Jun 7
Wait for truly warm soil; thrives in peak summer heat.
Mar 8 - May 7
Block-plant for pollination; get it in early to beat earworm pressure.
Mar 8 - May 7
Mar 8 - May 7
Apr 8 - Jun 7
Handles heat better than snap beans.
Mar 8 - May 7
Apr 8 - Jun 7
Needs the long warm season to mature; sandy soil ideal.
Apr 8 - Jun 7
Excellent heat- and drought-tolerant summer legume.
Apr 8 - Jun 7
Plant slips once nights stay above 60°F.
Mar 8 - May 7
Loves heat; pinch flowers to keep leaves coming all summer.
Apr 8 - Jun 7
Heat-loving leafy green that replaces true spinach in summer.
Mar 8 - May 7
Apr 8 - Jun 7
Mar 8 - May 7
Mar 8 - May 7
Mar 8 - May 7
Good companion for nematode suppression around tomatoes.
Mar 8 - May 7
Feb 28 - Apr 7
Plant early; fades once intense heat arrives.
Feb 28 - Apr 7
Last quick sowing of the season; harvest before it bolts in the heat.
What to Plant in Summer
Zone 9 summers are dominated by oppressive heat and humidity (or desert intensity) that halts most planting and stresses fruit set, so the season is mostly about maintaining spring-planted heat-lovers and growing only the toughest tropical crops. Use shade cloth, deep mulch, and consistent water; many gardeners take a partial break in July-August.
Jun 8 - Aug 7
One of the few crops that thrives in peak heat; keep picking pods young.
Jun 8 - Aug 7
Reliable through the hottest stretch; fixes nitrogen.
Jun 8 - Aug 7
Tropical pole bean that loves the worst of summer.
Jun 8 - Jul 7
Handles heat where snap beans fail.
Jun 8 - Aug 7
Thrives in heat as a spinach substitute.
Jun 8 - Aug 7
Jun 8 - Jul 7
Jun 8 - Aug 7
Heat-loving tropical vine; needs a sturdy trellis.
Jun 8 - Jul 7
Long-season vine; trellis and let some mature into sponges.
Jun 8 - Aug 7
Plant a sprouted whole fruit; vigorous perennial vine in zone 9.
Jun 8 - Jul 7
Keep succession-planting; thrives until first frost.
Jun 8 - Aug 7
Loves heat and humidity; can overwinter in zone 9.
Jun 8 - Jul 7
Jun 8 - Aug 7
Succession-sow for continuous blooms.
Jun 8 - Aug 7
One of the few annual flowers unfazed by the heat.
Jun 8 - Aug 7
Jul 14 - Aug 24
Set out fresh transplants in late summer for a fall crop once nights cool.
What to Plant in Fall
Fall is the second great planting season in zone 9: as the heat breaks in September-October, gardeners plant a huge succession of cool-season crops plus a quick round of warm-season vegetables before the December frost. Cooling nights bring far better fruit set and sweeter greens than spring.
Aug 25 - Sep 23
Last call for fall fruit; pick short-season varieties to beat first frost.
Aug 25 - Oct 24
Quick fall crop before frost.
Aug 25 - Sep 23
Fall crop sets cleaner fruit than the spring planting.
Aug 25 - Sep 23
Jul 25 - Sep 23
Needs to be sown early enough in fall to mature before frost.
Sep 24 - Nov 23
Succession-sow every 2-3 weeks all fall and winter.
Sep 24 - Nov 23
Direct sow; true spinach finally thrives in cool fall soil.
Sep 24 - Nov 23
Flavor sweetens after light frost.
Sep 24 - Nov 23
Productive cut-and-come-again all fall, winter, and into spring.
Sep 24 - Nov 23
Classic zone 9 winter green; very cold-hardy here.
Sep 24 - Nov 23
Sep 24 - Nov 23
Sep 24 - Nov 23
Sep 24 - Oct 24
Sep 24 - Nov 23
Cooling weather gives tight heads; one of the best fall crops.
Sep 24 - Nov 23
Sep 24 - Nov 23
Sep 24 - Nov 23
Sep 24 - Nov 23
Fall-sown carrots sweeten in cool soil; keep evenly moist for germination.
Sep 24 - Nov 23
Sep 24 - Dec 24
Fast; succession-sow through winter.
Sep 24 - Nov 23
Oct 25 - Dec 24
Plant short-day varieties for spring bulbing in the South.
Sep 24 - Nov 23
Plant cloves in fall for early-summer harvest; softneck types do best.
Sep 24 - Nov 23
Cool-season legume; trellis the climbing types.
Sep 24 - Nov 23
Sep 24 - Nov 23
Cool weather keeps it from bolting; grows beautifully all winter.
Sep 24 - Nov 23
Sep 24 - Nov 23
Sep 24 - Nov 23
Cool-season flower that blooms through the mild winter.
Sep 24 - Nov 23
Fall-set crowns produce a heavy crop the following spring in zone 9.
What to Plant in Winter
In zone 9 winter is a prime growing season, not a dormant one: with only light, occasional frosts, cool-season greens, roots, and brassicas grow steadily and gardeners harvest fresh produce all season. Keep light frost cloth on hand for the rare hard freeze, but most cool crops shrug off zone 9 winters.
Nov 24 - Feb 21
Succession-sow; cool weather gives sweet, slow-growing heads.
Nov 24 - Jan 24
Peak season; harvest outer leaves continuously.
Nov 24 - Jan 24
Cold-hardy and at its sweetest in winter.
Nov 24 - Jan 24
Nov 24 - Jan 24
Withstands the occasional frost with ease.
Nov 24 - Feb 21
Nov 24 - Feb 21
Nov 24 - Feb 21
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Harvest the main head, then keep cutting side shoots through spring.
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Winter-grown roots are exceptionally sweet.
Nov 24 - Jan 24
Nov 24 - Feb 21
Fast winter crop; succession-sow.
Nov 24 - Jan 24
Nov 24 - Feb 21
Nov 24 - Jan 24
Nov 24 - Jan 24
Thrives in the mild winter; trellis the vining types.
Nov 24 - Jan 24
Nov 24 - Jan 24
Cool-season legume that overwinters and fixes nitrogen.
Nov 24 - Feb 21
Best season of the year; no bolting in cool weather.
Nov 24 - Jan 24
Nov 24 - Jan 24
Prefers cool, shady winter conditions.
Nov 24 - Jan 24
Nov 24 - Jan 24
Nov 24 - Jan 24
Very cold-hardy salad green for winter harvest.
Nov 24 - Jan 24
Blooms cheerfully through zone 9 winters.
Save a planting from your zone 9 calendar
Choose a crop and a date that suits your local conditions. Create a free account or sign in, then review and save your planting plan. Your saved plan is available on web, iOS, and Android.
Zone calendars are starting points, not local forecasts. Check local frost dates, soil temperature, and the crop's planting instructions before choosing a date. This does not change your profile's zone.
Full Planting Timing Table
Start-indoors, direct-sow, transplant, and harvest windows for every crop in zone 9a.
Vegetables
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Notes |
|---|---|---|---|---|---|
| Amaranth (Leaf) | — | Jun 8 - Aug 7 | — | — | — |
| Arugula | — | Sep 24 - Nov 23 | — | — | — |
| Beet | — | Sep 24 - Nov 23 | — | — | — |
| Bitter Melon | — | Jun 8 - Aug 7 | — | — | Heat-loving tropical vine; needs a sturdy trellis. |
| Bok Choy / Pak Choi | — | — | Sep 24 - Nov 23 | — | — |
| Broccoli | — | — | Sep 24 - Nov 23 | — | Harvest the main head, then keep cutting side shoots through spring. |
| Broccoli Raab (Rapini) | — | Nov 24 - Jan 24 | — | — | — |
| Bush Bean | — | Aug 25 - Oct 24 | — | — | Quick fall crop before frost. |
| Cabbage | — | — | Sep 24 - Nov 23 | — | — |
| Carrot | — | Sep 24 - Nov 23 | — | — | Winter-grown roots are exceptionally sweet. |
| Cauliflower | — | — | Sep 24 - Nov 23 | — | — |
| Chayote | — | — | Jun 8 - Aug 7 | — | Plant a sprouted whole fruit; vigorous perennial vine in zone 9. |
| Chinese Broccoli (Gai Lan) | — | Nov 24 - Jan 24 | — | — | — |
| Collards | — | — | Sep 24 - Nov 23 | — | Withstands the occasional frost with ease. |
| Corn (Sweet) | — | Mar 8 - May 7 | — | — | Block-plant for pollination; get it in early to beat earworm pressure. |
| Cowpea / Southern Pea | — | Jun 8 - Aug 7 | — | — | Reliable through the hottest stretch; fixes nitrogen. |
| Cucumber | — | Aug 25 - Sep 23 | — | — | Fall crop sets cleaner fruit than the spring planting. |
| Edamame (Soybean) | — | Mar 8 - May 7 | — | — | — |
| Eggplant | — | — | Mar 8 - May 7 | — | Loves the heat; one of the best summer performers here. |
| Endive / Escarole | — | Nov 24 - Jan 24 | — | — | — |
| Fava Bean | — | Nov 24 - Jan 24 | — | — | Cool-season legume that overwinters and fixes nitrogen. |
| Garden Pea | — | Sep 24 - Nov 23 | — | — | Thrives in the mild winter; trellis the vining types. |
| Garlic | — | — | Sep 24 - Nov 23 | — | Plant cloves in fall for early-summer harvest; softneck types do best. |
| Kale | — | — | Sep 24 - Nov 23 | — | Cold-hardy and at its sweetest in winter. |
| Kohlrabi | — | Sep 24 - Nov 23 | — | — | — |
| Leek | — | — | Nov 24 - Jan 24 | — | — |
| Lettuce | — | Sep 24 - Nov 23 | — | — | Succession-sow; cool weather gives sweet, slow-growing heads. |
| Lima Bean | — | Jun 8 - Jul 7 | — | — | Handles heat where snap beans fail. |
| Luffa | — | Jun 8 - Jul 7 | — | — | Long-season vine; trellis and let some mature into sponges. |
| Malabar Spinach | — | Jun 8 - Aug 7 | — | — | Thrives in heat as a spinach substitute. |
| Mizuna | — | Nov 24 - Feb 21 | — | — | — |
| Mustard Greens | — | Sep 24 - Nov 23 | — | — | — |
| Napa Cabbage | — | — | Sep 24 - Oct 24 | — | — |
| New Zealand Spinach | — | Mar 8 - May 7 | — | — | — |
| Okra | — | Jun 8 - Aug 7 | — | — | One of the few crops that thrives in peak heat; keep picking pods young. |
| Onion (Bulb) | — | — | Oct 25 - Dec 24 | — | Plant short-day varieties for spring bulbing in the South. |
| Pac/Corn Salad (Mâche) | — | Nov 24 - Jan 24 | — | — | Very cold-hardy salad green for winter harvest. |
| Peanut | — | Apr 8 - Jun 7 | — | — | Needs the long warm season to mature; sandy soil ideal. |
| Pepper (Bell & Hot) | — | — | Mar 8 - Apr 17 | — | Wait for soil to warm; peppers sulk in cold ground. |
| Pole Bean | — | Mar 8 - May 7 | — | — | — |
| Radicchio | — | — | Nov 24 - Jan 24 | — | — |
| Radish | — | Sep 24 - Dec 24 | — | — | Fast winter crop; succession-sow. |
| Scallion / Green Onion | — | Nov 24 - Feb 21 | — | — | — |
| Snap / Snow Pea | — | Sep 24 - Nov 23 | — | — | — |
| Spinach | — | Sep 24 - Nov 23 | — | — | Peak season; harvest outer leaves continuously. |
| Summer Squash | — | Aug 25 - Sep 23 | — | — | — |
| Sweet Potato | — | — | Apr 8 - Jun 7 | — | Plant slips once nights stay above 60°F. |
| Swiss Chard | — | — | Sep 24 - Nov 23 | — | Productive cut-and-come-again all fall, winter, and into spring. |
| Tatsoi | — | Nov 24 - Jan 24 | — | — | — |
| Tomatillo | — | — | Mar 8 - May 7 | — | Plant at least two for cross-pollination. |
| Tomato | — | — | Aug 25 - Sep 23 | — | Set out robust transplants right after last frost; choose heat-set varieties to keep fruiting as temps climb. |
| Turnip | — | Sep 24 - Nov 23 | — | — | — |
| Winter Squash | — | Jul 25 - Sep 23 | — | — | Needs to be sown early enough in fall to mature before frost. |
| Yardlong Bean | — | Jun 8 - Aug 7 | — | — | Tropical pole bean that loves the worst of summer. |
| Zucchini | — | Mar 8 - May 7 | — | — | Plant early to harvest before squash vine borer and powdery mildew peak. |
Herbs
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Notes |
|---|---|---|---|---|---|
| Basil | — | — | Mar 8 - May 7 | — | Keep succession-planting; thrives until first frost. |
| Chervil | — | Nov 24 - Jan 24 | — | — | Prefers cool, shady winter conditions. |
| Cilantro / Coriander | — | Sep 24 - Nov 23 | — | — | Cool weather keeps it from bolting; grows beautifully all winter. |
| Dill | — | Sep 24 - Nov 23 | — | — | — |
| Lemongrass | — | — | Jun 8 - Aug 7 | — | Loves heat and humidity; can overwinter in zone 9. |
| Parsley | — | — | Sep 24 - Nov 23 | — | — |
| Stevia | — | — | Jun 8 - Jul 7 | — | — |
Fruits
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Notes |
|---|---|---|---|---|---|
| Ground Cherry | — | — | Mar 8 - May 7 | — | — |
| Muskmelon / Cantaloupe | — | Mar 8 - May 7 | — | — | — |
| Strawberry | — | — | Sep 24 - Nov 23 | — | Fall-set crowns produce a heavy crop the following spring in zone 9. |
| Watermelon | — | Mar 8 - May 7 | — | — | Needs the full hot season to ripen; sow as early as soil allows. |
Flowers
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Notes |
|---|---|---|---|---|---|
| Calendula | — | Sep 24 - Nov 23 | Nov 24 - Jan 24 | — | Cool-season flower that blooms through the mild winter. |
| Cosmos | — | Mar 8 - May 7 | — | — | — |
| Marigold | — | Mar 8 - May 7 | — | — | Good companion for nematode suppression around tomatoes. |
| Nasturtium | — | Feb 28 - Apr 7 | — | — | Plant early; fades once intense heat arrives. |
| Sunflower | — | Mar 8 - May 7 | — | — | Succession-sow for continuous blooms. |
| Zinnia | — | Mar 8 - May 7 | — | — | One of the few annual flowers unfazed by the heat. |
Zone 9a vs Zone 9b
USDA divides zone 9 into two half-zones 5°F apart. Zone 9a is the cooler one; here is how its frost dates compare with zone 9b and the zone 9 average.
| Zone 9a | Zone 9 | Zone 9b | |
|---|---|---|---|
| Winter low | 20 to 25°F | 20 to 30°F | 25 to 30°F |
| Last spring frost | Mar 7 | Feb 28 | Feb 21 |
| First fall frost | Nov 28 | Dec 5 | Dec 12 |
| Growing season | 266 days | 280 days | 294 days |
Not sure which half you're in? The half-zone comes from your area's average coldest winter night, so check the USDA map for your ZIP code. Your own microclimate — slope, shelter, pavement, elevation — can move dates as much as the half-zone does.
Zone 9a Growing Tips
- ✓ Flip the traditional calendar: in zone 9 the main cool-season garden runs fall through spring (October-March), and summer is the off-season for most vegetables. Plant brassicas, roots, greens, and peas in fall, not spring.
- ✓ Beat the heat for warm-season fruit set: get tomatoes and peppers transplanted by mid-March so they fruit before summer night temperatures above 75°F shut down pollination, then plant a second round in late July/August for a fall harvest.
- ✓ Use shade cloth (30-40%), heavy mulch, and drip irrigation to carry heat-tolerant crops like okra, southern peas, eggplant, and sweet potato through the punishing July-August stretch.
- ✓ Choose short-day onion varieties and plant onion sets/transplants and garlic cloves in fall (Oct-Nov) for late-spring/early-summer bulbing; long-day types will not bulb properly at this latitude.
- ✓ Keep frost cloth ready for the occasional hard freeze: most winter greens and brassicas are unfazed, but a rare 25°F night can damage tender seedlings and citrus, so protect on the few cold nights.
- ✓ Substitute heat-loving leafy greens (Malabar spinach, New Zealand spinach, leaf amaranth) for true spinach and lettuce in summer, since cool-season salads bolt almost instantly once the heat arrives.
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Sign Up FreeFrequently Asked Questions
What can I plant in spring in zone 9a?
In zone 9a, spring planting includes Tomato, Pepper (Bell & Hot), Eggplant, Tomatillo, Ground Cherry, Cucumber, Zucchini, Summer Squash, and more. See the spring section above for each crop's timing.
What is the last frost date for zone 9a?
The average last spring frost date for USDA zone 9a is Mar 7. The first fall frost typically arrives around Nov 28, giving a growing season of approximately 266 days.
When is the first frost in zone 9a?
The average first fall frost in USDA zone 9a arrives around Nov 28. That is an average, not a guarantee — the actual first frost varies by up to 2 weeks either way, so watch your local forecast from a few weeks before that date and have row covers ready for tender crops still in the ground.
What can I plant in fall in zone 9a?
Fall planting in zone 9a includes Tomato, Bush Bean, Cucumber, Summer Squash, Winter Squash, Lettuce, Spinach, Kale, and more.
How long is the growing season in zone 9a?
Zone 9a has an average growing season of 266 days, from the last spring frost around Mar 7 to the first fall frost around Nov 28.
What is the difference between zone 9a and zone 9b?
Zone 9a is the cooler half of USDA zone 9, with average coldest winter nights of 20 to 25°F. Compared with the zone 9 averages (last frost Feb 28, first frost Dec 5), zone 9a's last spring frost is about a week later (Mar 7) and its first fall frost about a week earlier (Nov 28), so zone 9b gardeners plant about two weeks earlier in spring and later in fall than zone 9a.
What to plant right now
Month-specific guides for zone 9, hand-tuned to current frost dates and crop windows.
- What to Plant in October: Garlic Month, Cover Crops, and the Southern Fall Garden — What to plant in October: garlic goes in across zones 3-7, cover crops hit their deadline, and zones 8-10 plant the best garden of their year.
Learn more: When to plant vegetables by zone