The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Winchester can be reviewed to determine when 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.

Impatiens are not cold tolerant which tells us that it is necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant impatiens in Winchester 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 fully mature. You can get started a little bit earlier by starting your impatiens indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Winchester is just an average and the actual date of last frost will vary from year to year. Since half of the time in Winchester you get a frost after April 15 be ready to protect your impatiens if you have a late frost.

USDA Zone Info for Winchester

Here is the info for USDA Zone 6b.

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

Plants to Grow in Winchester

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