The USDA Zone info is a great tool for gardeners to help us figure out your gardening 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 estimating when it's possible to plant garden cress is to consult the USDA zone info for Piedmont.

Planting Calendar for Garden cress

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

Since garden cress require warm weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant garden cress in Piedmont 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 garden cress and expect a good harvest is probably September. Any later than that and your garden cress may not have a chance to fully mature. 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

In Piedmont the average date of last frost happens on January 31. You can expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for Piedmont is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Piedmont it frosts late in the year after January 31 be ready to protect your garden cress in the event of a late frost.

USDA Zone Info for Piedmont

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 Piedmont

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