Zone 9: What to Grow in Heat
Zone 9 has 250–300 frost-free days. Summer heat is extreme. Grow heat-tolerant crops in summer, cool-season crops in winter.
Zone 9 gardening is inverted. Winter is the main growing season.
The Season
| Factor | Value |
|---|---|
| Last frost | February |
| First frost | December |
| Frost-free days | 250-300 |
Growing Calendar
| Season | Plant |
|---|---|
| Winter (Nov-Feb) | Cool-season crops |
| Spring (Mar-May) | Warm-season crops |
| Summer (Jun-Sep) | Heat-tolerant only |
| Fall (Oct-Nov) | Warm-season continues |
Heat-Tolerant Crops (Summer)
- Okra
- Sweet potatoes
- Southern peas
- Peppers
- Tomatoes (heat-tolerant)
- Zucchini
Cool-Season Crops (Winter)
- Lettuce
- Spinach
- Kale
- Broccoli
- Carrots
- Beets
Common Questions
Can I grow lettuce in summer? No. Too hot. Grow in winter.
What about tomatoes? Yes, but they stop setting fruit above 90°F.
What about fall? Best season for many crops.
Can I grow year-round? Yes. Winter is best.
What about frost? Rare but possible. Protect.
What about tropicals? Citrus, avocado, mango grow here.