One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Sumner it's a good idea to figure out when it's the best time to 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 start planting them slightly earlier than other frost tender plants.

The earliest that you can plant datura in Sumner 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 fully mature. You can get started a few weeks earlier by starting your datura indoors.

Last Frost Date

The average date of last frost is March 15 in Sumner. You should expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Sumner and it changes from year to year. Half of the time in Sumner you get a frost after March 15 so always be ready to protect your datura if you have one of those late frosts.

USDA Zone Info for Sumner

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 Sumner

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