One of the best tools that you have as gardeners to help us estimate 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 first chance to plant rock cress in Cranston 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.

Since rock cress do well in cold you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant rock cress in Cranston 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 fully mature. You can get started a little bit earlier by starting your rock cress indoors.

Last Frost Date

The average date of last frost is April 15 in Cranston. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Cranston is just an average and the actual date of last frost is different every year. Half of the time in Cranston last frost occurs after April 15 so just be sure to be ready to cover your rock cress in the event of a surprise late frost.

USDA Zone Info for Cranston

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Cranston

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