The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when it's possible to plant calliopsis is to look at the USDA zone info for Iowa Park.

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 should not plant calliopsis until after all chance of frost has passed because they require warm weather.

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

The last month that you can plant calliopsis and expect a good harvest is probably August. If you wait any later than that and your calliopsis may not have a chance to fully mature. Starting your calliopsis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Iowa Park. You should expect an average low temperature of 5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Iowa Park is an average and the actual date of last frost is different every year. Since half of the time in Iowa Park there is a last frost after April 15 be ready to cover your calliopsis in the event of a surprise late frost.

USDA Zone Info for Iowa Park

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Iowa Park

You may be interested in your other planting guides for Iowa Park.