Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when you can plant rock cress is to refer to the USDA zone info for Hammond.

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 tells us that you can plant them much earlier than more sensitive plants.

The earliest that you can plant rock cress in Hammond 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 little bit 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 Hammond. You should expect an average low temperature of 15°F in the coldest months of winter.

Keep in mind that USDA zone info for Hammond is not always accurate and the actual date of last frost changes from year to year. Half of the time in Hammond it frosts late in the year after March 15 so be sure to be ready to cover your rock cress if you have a surprise late frost.

USDA Zone Info for Hammond

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 Hammond

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