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.

In Rancho Cordova you can determine when it's the best time to plant calliopsis by reviewing the USDA zone info.

Planting Calendar for Calliopsis

Frost tolerance for calliopsis:	Not tolerant of frost.
When to plant:	After the last frost.

Since calliopsis are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant calliopsis in Rancho Cordova is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant calliopsis and expect a good harvest is probably September. Any later than that and your calliopsis may not have a chance to grow to maturity. If you are starting your calliopsis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Rancho Cordova. You should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Rancho Cordova is just an average and the actual date of last frost will vary from year to year. Since half of the time in Rancho Cordova you get surprised by a frost after February 15 be ready to protect your calliopsis in the event of one of those late frosts.

USDA Zone Info for Rancho Cordova

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 Rancho Cordova

You may be interested in your other planting guides for Rancho Cordova.