The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Petaluma should be looked at to figure out when it's possible to plant okra.

Planting Calendar for Okra

Frost tolerance for okra:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since okra are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant okra in Petaluma is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant okra and expect a good harvest is probably September. You probably don't want to wait any later than that or else your okra may not have a chance to fully mature. Starting your okra indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Petaluma. You should expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Petaluma and it can change quite a bit from year to year. Half of the time in Petaluma there is a last frost after February 15 so make sure that you are ready to protect your okra if you have one of those late frosts.

USDA Zone Info for Petaluma

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Petaluma

You may be interested in your other planting guides for Petaluma.