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

The USDA zone info for Bessemer should be reffered to in order to determine when you can plant datura.

Planting Calendar for Datura

Frost tolerance for datura:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Datura are barely cold tolerant which means that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant datura in Bessemer is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant datura and expect a good harvest is probably August. Any later than that and your datura may not have a chance to really do well. You can get started a little bit earlier by starting your datura indoors.

Last Frost Date

On average the last frost is on March 15 in Bessemer. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Bessemer is just an average the actual date of last frost will vary from year to year. Since half of the time in Bessemer last frost occurs after March 15 be ready to cover your datura in the event of one of those late frosts.

USDA Zone Info for Bessemer

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 Bessemer

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