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

The earliest that you can plant rock cress in Seguin can be determined by using the USDA zone info.

Planting Calendar for Rock Cress

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

Rock Cress are very cold tolerant which means that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant rock cress in Seguin 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 rock cress and expect a good harvest is probably September. If you wait any later than that and your rock cress may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your rock cress indoors.

Last Frost Date

On average the last frost is on March 15 in Seguin. In the coldest months of winter you should expect an average low temperature of 15°F.

It's important to remember that USDA zone info for Seguin may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Seguin it frosts late in the year after March 15 be ready to cover your rock cress if you have one of those late frosts.

USDA Zone Info for Seguin

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 Seguin

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