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.

The USDA zone info for Lake in the Hills should be read to estimate when you can plant calliopsis.

Planting Calendar for Calliopsis

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

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

The earliest that you can plant calliopsis in Lake in the Hills 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 grow to maturity. Starting your calliopsis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Lake in the Hills is just an average the actual date of last frost is different every year. Since half of the time in Lake in the Hills you get surprised by a frost after April 15 be ready to protect your calliopsis if you have a surprise late frost.

USDA Zone Info for Lake in the Hills

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Lake in the Hills

You may be interested in your other planting guides for Lake in the Hills.