One of the first steps you take when you are determining your gardening schedule is find your 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 Desert Hot Springs you can figure out when it's a good idea to plant lithospermum by referring to the USDA zone info.

Planting Calendar for Lithospermum

Frost tolerance for lithospermum:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant lithospermum until after the last frost because they do not do well in cold weather.

The earliest that you can plant lithospermum in Desert Hot Springs 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 lithospermum and expect a good harvest is probably September. Any later than that and your lithospermum may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lithospermum indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Desert Hot Springs. In the coldest months of winter you can expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Desert Hot Springs is just an average and the actual date of last frost will vary from year to year. Half of the time in Desert Hot Springs you get surprised by a frost after February 15 so always be ready to protect your lithospermum in the event of a late frost.

USDA Zone Info for Desert Hot Springs

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 Desert Hot Springs

You may be interested in your other planting guides for Desert Hot Springs.