One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

The USDA zone info for Calimesa should be reffered to in order to determine when to plant canna.

Planting Calendar for Canna

Frost tolerance for canna:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since canna are not cold tolerant you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant canna in Calimesa 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 canna and expect a good harvest is probably September. You probably don't want to wait any later than that or else your canna may not have a chance to fully mature. Starting your canna indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Calimesa the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Calimesa is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Calimesa you get surprised by a frost after February 15 be ready to protect your canna in the event of one of those late frosts.

USDA Zone Info for Calimesa

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 Calimesa

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