One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Ojai you can figure out when it's a good idea to plant datura by referring to the USDA zone info.

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 plants that are more sensitive to the cold.

The earliest that you can plant datura in Ojai 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. You probably don't want to wait any later than that or else your datura may not have a chance to fully mature. You can get started a little bit earlier by starting your datura indoors.

Last Frost Date

The average date of last frost is February 15 in Ojai. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Ojai is just an average and the actual date of last frost will vary from year to year. Half of the time in Ojai there is a last frost after February 15 so be sure to be ready to cover your datura if you have one of those late frosts.

USDA Zone Info for Ojai

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Ojai

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