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

A common way of estimating when you can plant heliotrope is to look at the USDA zone info for Matthews.

Planting Calendar for Heliotrope

Frost tolerance for heliotrope:	Not tolerant of frost.
When to plant:	After the last frost.

Since heliotrope require warm weather it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant heliotrope in Matthews 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 grow to maturity. You can get started a couple of weeks earlier by starting your heliotrope indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Matthews. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Matthews may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Matthews you get surprised by a frost after April 15 so just be sure to be ready to cover your heliotrope in the event of one of those late frosts.

USDA Zone Info for Matthews

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 Matthews

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