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.

A common way of determining when to plant rock cress is to consult the USDA zone info for Grambling.

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 one of those plants that can tolerate quite a bit of cold weather which means that you can plant them much earlier than other plants that might not handle the cold.

The earliest that you can plant rock cress in Grambling 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. Any later than that and your rock cress may not have a chance to really do well. You can get started a couple of weeks earlier by starting your rock cress indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Grambling. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Grambling is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Grambling last frost occurs after March 15 be ready to cover your rock cress in the event of one of those late frosts.

USDA Zone Info for Grambling

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Grambling

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