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.

By using the USDA zone info for Lexington you should be able to determine when it's the best time to plant impatiens.

Planting Calendar for Impatiens

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

Since impatiens are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant impatiens in Lexington 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. You probably don't want to wait any later than that or else your impatiens may not have a chance to fully mature. If you are starting your impatiens indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Lexington. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Lexington is not always accurate the actual date of last frost changes from year to year. Since half of the time in Lexington you get surprised by a frost after April 15 be ready to protect your impatiens if you have a surprise late frost.

USDA Zone Info for Lexington

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 Lexington

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