Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Chandler you can figure out when to plant calliopsis by checking out the USDA zone info.

Planting Calendar for Calliopsis

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

You really shouldn't plant calliopsis until after the last frost because they do not do well in cold weather.

The earliest that you can plant calliopsis in Chandler 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 really do well. You can get started a couple of weeks earlier by starting your calliopsis indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Chandler. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Chandler is not always accurate the actual date of last frost changes from year to year. Half of the time in Chandler you get a frost after February 15 so make sure that you are ready to protect your calliopsis if you have a surprise late frost.

USDA Zone Info for Chandler

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 Chandler

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