One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when it's possible to plant gaillardia by checking out the USDA zone info for Vallejo.

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 just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant gaillardia in Vallejo 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 grow to maturity. If you are starting your gaillardia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Vallejo. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Vallejo is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Vallejo there is a last frost after February 15 be ready to protect your gaillardia if you have a late frost.

USDA Zone Info for Vallejo

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 Vallejo

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