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

The first opportunity to plant calliopsis in North Vernon should be estimated by referring to 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.

Since calliopsis do not do well in cold weather it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant calliopsis in North Vernon 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. If you are starting your calliopsis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in North Vernon. You can expect an average low temperature of -10°F in the coldest months of winter.

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

USDA Zone Info for North Vernon

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in North Vernon

You may be interested in your other planting guides for North Vernon.