One of the first steps you take when you are figuring out 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.

It's a good idea to figure out when it's the best time to plant gaillardia by referring to the USDA zone info for Oroville.

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 are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant gaillardia in Oroville 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. Any later than that and your gaillardia may not have a chance to grow to maturity. Starting your gaillardia 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 Oroville. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Oroville is just an average and the actual date of last frost will vary from year to year. Since half of the time in Oroville there is a last frost after February 15 be ready to protect your gaillardia if you have a late frost.

USDA Zone Info for Oroville

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 Oroville

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