The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of getting a good idea when it's the best time to plant impatiens is to refer to the USDA zone info for Guntersville.

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's important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant impatiens in Guntersville 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 grow to maturity. You can get started a few weeks earlier by starting your impatiens indoors.

Last Frost Date

The average date of last frost is March 15 in Guntersville. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Guntersville is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Guntersville last frost occurs after March 15 be ready to protect your impatiens if you have a surprise late frost.

USDA Zone Info for Guntersville

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Guntersville

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