One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when it's possible to plant rock cress by referring to the USDA zone info for Montgomery.

Planting Calendar for Rock Cress

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

You can plant rock cress quite a bit earlier in the year because they do well in cold.

The earliest that you can plant rock cress in Montgomery 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. You probably don't want to wait any later than that or else your rock cress may not have a chance to grow to maturity. Starting your rock cress indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Montgomery. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Montgomery may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Montgomery it frosts late in the year after April 15 be ready to protect your rock cress in the event of a late frost.

USDA Zone Info for Montgomery

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Montgomery

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