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

In Yucaipa you can determine when to plant tritoma by referring to the USDA zone info.

Planting Calendar for Tritoma

Frost tolerance for tritoma:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since tritoma are very cold tolerant you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant tritoma in Yucaipa is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant tritoma and expect a good harvest is probably October. You probably don't want to wait any later than that or else your tritoma may not have a chance to fully mature. If you are starting your tritoma indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Yucaipa the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Yucaipa is an average and the actual date of last frost will vary from year to year. Since half of the time in Yucaipa it frosts late in the year after February 15 be ready to protect your tritoma in the event of one of those late frosts.

USDA Zone Info for Yucaipa

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 Yucaipa

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