Planting Zone 10b

Min winter temp 35 to 40°F · last frost ~January · first frost ~December

Last spring frost

Jan 15

First fall frost

Dec 31

Growing season

350 days

In Zone 10b, the average last spring frost is around January and the first fall frost around December, about a 350-day growing season. Start tender crops indoors before the last frost and move them out once it passes.

Zone 10b planting calendar

Start indoors Transplant Direct sow Harvest

Crop	Jan	Feb	Mar	Apr	May	Nov	Dec
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	●			●

When to plant popular crops in Zone 10b

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 10b?

On average, the last spring frost in Zone 10b is around January; the first fall frost is around December.

What can I grow in Zone 10b?

Nearly all common vegetables and herbs grow in Zone 10b; the difference is timing. Use the planting calendar above, calculated from Zone 10b frost dates.

How long is the growing season in Zone 10b?

About 350 days between the average last spring and first fall frost.