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.

A common way of making a decision about when it's a good idea to plant calliopsis is to check out the USDA zone info for Solana Beach.

Planting Calendar for Calliopsis

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

Since calliopsis do not do well in cold weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant calliopsis in Solana Beach 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 calliopsis and expect a good harvest is probably September. If you wait any later than that and your calliopsis may not have a chance to fully mature. You can get started a few weeks earlier by starting your calliopsis indoors.

Last Frost Date

On average the last frost is on January 31 in Solana Beach. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Solana Beach is an average and the actual date of last frost will vary from year to year. Half of the time in Solana Beach it frosts late in the year after January 31 so make sure that you are ready to cover your calliopsis if you have one of those late frosts.

USDA Zone Info for Solana Beach

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Solana Beach

You may be interested in your other planting guides for Solana Beach.