One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. 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 heliotrope in Clinton can be figured out by looking at the USDA zone info.

Planting Calendar for Heliotrope

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

Since heliotrope are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant heliotrope in Clinton 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 heliotrope and expect a good harvest is probably August. Any later than that and your heliotrope may not have a chance to fully mature. Starting your heliotrope indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Clinton. You should expect an average low temperature of 0°F in the coldest months of winter.

Always keep in mind that USDA zone info for Clinton is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Clinton you get surprised by a frost after April 15 so be sure to be ready to cover your heliotrope in the event of one of those late frosts.

USDA Zone Info for Clinton

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Clinton

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