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

By using the USDA zone info for Suisun City you will be able to determine when you can plant gaillardia.

Planting Calendar for Gaillardia

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

Since gaillardia do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

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

Last Frost Date

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

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Suisun City and it changes from year to year. Half of the time in Suisun City last frost occurs after February 15 so always be ready to protect your gaillardia if you have one of those late frosts.

USDA Zone Info for Suisun City

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 Suisun City

You may be interested in your other planting guides for Suisun City.