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

A way of estimating when it's the best time to plant calliopsis is to use the USDA zone info for Estherville.

Planting Calendar for Calliopsis

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

Calliopsis require warm weather which tells us that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant calliopsis in Estherville 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. You probably don't want to wait any later than that or else your calliopsis may not have a chance to grow to maturity. Starting your calliopsis indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Estherville. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Estherville is just an average the actual date of last frost is different every year. Half of the time in Estherville you get a frost after April 15 so be sure to be ready to cover your calliopsis in the event of a surprise late frost.

USDA Zone Info for Estherville

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Estherville

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