One of the first steps you take when you are determining your gardening schedule is find your 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 USDA zone info for Sonoma should be reffered to in order to estimate when it's a good idea to plant transvaal daisy.

Planting Calendar for Transvaal Daisy

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

Transvaal Daisy are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant transvaal daisy 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 transvaal daisy and expect a good harvest is probably September. You probably don't want to wait any later than that or else your transvaal daisy may not have a chance to really do well. You can get started a couple of weeks earlier by starting your transvaal daisy indoors.

Last Frost Date

In Sonoma the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Sonoma is an average the actual date of last frost changes from year to year. Half of the time in Sonoma you get surprised by a frost after February 15 so always be ready to protect your transvaal daisy in the event of a 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.