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

You can figure out when it's possible to plant tritoma in San Marcos by checking out 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.

You can plant tritoma earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant tritoma in San Marcos 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 really do well. You can get started a couple of weeks earlier by starting your tritoma indoors.

Last Frost Date

In San Marcos the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for San Marcos is just an average the actual date of last frost is different every year. Half of the time in San Marcos last frost occurs after January 31 so always be ready to cover your tritoma if you have a late frost.

USDA Zone Info for San Marcos

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 Low	30°F
Highest Expected Low	35°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 San Marcos

You may be interested in your other planting guides for San Marcos.