The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when it's a good idea to plant snow-in summer is to refer to the USDA zone info for Huntsville.

Planting Calendar for Snow-in Summer

Frost tolerance for snow-in summer:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Snow-in Summer are moderately cold tolerant which tells us that you can start planting them earlier than more sensitive plants.

The earliest that you can plant snow-in summer in Huntsville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant snow-in summer and expect a good harvest is probably September. Any later than that and your snow-in summer may not have a chance to grow to maturity. If you are starting your snow-in summer indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Huntsville. In the coldest months of winter you should expect an average low temperature of 15°F.

Keep in mind that USDA zone info for Huntsville may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Huntsville there is a last frost after March 15 so make sure that you are prepared to cover your snow-in summer if you have one of those late frosts.

USDA Zone Info for Huntsville

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Huntsville

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