Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In San Marcos you can estimate when to plant garden cress by reviewing the USDA zone info.

Planting Calendar for Garden cress

Frost tolerance for garden cress:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant garden cress until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant garden cress in San Marcos is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is March 15 in San Marcos. You can expect an average low temperature of 15°F in the coldest months of winter.

Always keep in mind that USDA zone info for San Marcos may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in San Marcos there is a last frost after March 15 so always be ready to protect your garden cress if you have one of those late frosts.

USDA Zone Info for San Marcos

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in San Marcos

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