One of the best tools that you have as gardeners to help us determine 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.

You will be able to estimate when it's a good idea to plant eggplants by using the USDA zone info for San Marcos.

Planting Calendar for Eggplants

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

Since eggplants are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant eggplants in San Marcos 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 eggplants and expect a good harvest is probably September. Any later than that and your eggplants may not have a chance to grow to maturity. Starting your eggplants indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In San Marcos the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for San Marcos is just an average and the actual date of last frost is different every year. Half of the time in San Marcos you get surprised by a frost after January 31 so be sure to be ready to protect your eggplants if you have one of those late frosts.

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.