Planting Zone 9b
Min winter temp 25 to 30ยฐF ยท last frost ~February ยท first frost ~December
Last spring frost
Feb 15
First fall frost
Dec 10
Growing season
298 days
In Zone 9b, the average last spring frost is around February and the first fall frost around December, about a 298-day growing season. Start tender crops indoors before the last frost and move them out once it passes.
Zone 9b planting calendar
Start indoors Transplant Direct sow Harvest
| Crop | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tomatoes | โ | โ | โ | |||||||||
| Peppers | โ | โ | โ | |||||||||
| Cucumbers | โ | โ | โ | |||||||||
| Lettuce | โ | โ | โ | |||||||||
| Zucchini | โ | โ | โ | |||||||||
| Carrots | โ | โ | ||||||||||
| Beans (bush) | โ | โ | ||||||||||
| Peas | โ | โ | ||||||||||
| Broccoli | โ | โ | โ | |||||||||
| Spinach | โ | โ | ||||||||||
| Kale | โ | โ | โ | |||||||||
| Onions | โ | โ | โ | |||||||||
| Garlic | ||||||||||||
| Potatoes | โ | โ | ||||||||||
| Squash (winter) | โ | โ | โ | |||||||||
| Corn | โ | โ | ||||||||||
| Radishes | โ | โ | ||||||||||
| Beets | โ | โ | ||||||||||
| Eggplant | โ | โ | โ | |||||||||
| Basil | โ | โ | โ | |||||||||
| Cilantro | โ | โ | ||||||||||
| Parsley | โ | โ | โ | |||||||||
| Pumpkins | โ | โ | โ | |||||||||
| Sunflowers | โ | โ |
When to plant popular crops in Zone 9b
Tomatoes
~75 days
When to plant
Peppers
~80 days
When to plant
Cucumbers
~60 days
When to plant
Lettuce
~50 days
When to plant Tomatoes Peppers Cucumbers Lettuce Zucchini Carrots Beans (bush) Peas Broccoli Spinach Kale Onions Garlic Potatoes Squash (winter) Corn Radishes Beets Eggplant Basil Cilantro Parsley Pumpkins Sunflowers
Frequently asked questions
When is the last frost in Zone 9b?
On average, the last spring frost in Zone 9b is around February; the first fall frost is around December.
What can I grow in Zone 9b?
Nearly all common vegetables and herbs grow in Zone 9b; the difference is timing. Use the planting calendar above, calculated from Zone 9b frost dates.
How long is the growing season in Zone 9b?
About 298 days between the average last spring and first fall frost.