One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant gazania in Sonoma should be estimated by using the USDA zone info.

Planting Calendar for Gazania

Frost tolerance for gazania:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since gazania do ok in moderate cold you can plant them just a tiny bit earlier in the year than other frost tender plants.

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

The last month that you can plant gazania and expect a good harvest is probably September. If you wait any later than that and your gazania may not have a chance to grow to maturity. You can get started a little bit earlier by starting your gazania indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Sonoma may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Sonoma you get surprised by a frost after February 15 be ready to cover your gazania if you have a surprise late frost.

USDA Zone Info for Sonoma

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 Sonoma

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