One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when to plant impatiens by checking out the USDA zone info for Simpsonville.

Planting Calendar for Impatiens

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

Impatiens do not do well in cold weather which tells us that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant impatiens in Simpsonville 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 impatiens and expect a good harvest is probably August. Any later than that and your impatiens may not have a chance to really do well. Starting your impatiens indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Simpsonville. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Simpsonville is not always accurate the actual date of last frost changes from year to year. Half of the time in Simpsonville there is a last frost after April 15 so be sure to be ready to cover your impatiens in the event of a surprise late frost.

USDA Zone Info for Simpsonville

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 Simpsonville

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