When can I plant Tritoma in Zone 10a

One of the first steps we take when we are determining our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You can estimate when it's the best time to plant tritoma in Zone 10a by referring to the USDA zone info.


Planting Calendar for Tritoma

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

Since tritoma do well in cold you can plant them a lot earlier in the year than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant tritoma
Possibly ok, but a risky time to plant tritoma
Probably not a good time to plant tritoma

The earliest that you can plant tritoma in Zone 10a 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. You can get started a little bit earlier by starting your tritoma indoors.

Last Frost Date

In Zone 10a the average date of last frost happens on January 31. In the coldest months of winter we should expect an average low temperature of 30°F.

Remember that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 10a and it will vary from year to year. Half of the time in Zone 10a we get surprised by a frost after January 31 so always be ready to protect your tritoma in the event of a late frost.

USDA Zone Info for Zone 10a

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Zone 10a

You may be interested in our other planting guides for Zone 10a.