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.

By using the USDA zone info for Hemet you should be able to determine when it's possible 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 do well in some cold which tells us that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant datura in Hemet 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 datura and expect a good harvest is probably September. If you wait any later than that and your datura may not have a chance to fully mature. Starting your datura indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Hemet. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Hemet is not always accurate the actual date of last frost changes from year to year. Half of the time in Hemet last frost occurs after February 15 so be sure to be ready to cover your datura in the event of a surprise late frost.

USDA Zone Info for Hemet

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Hemet

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