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.

One way of estimating when it's the best time to plant purple rock cress is to use the USDA zone info for Albion.

Planting Calendar for Purple Rock Cress

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

Purple Rock Cress do ok in cold weather which means that you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant purple rock cress in Albion 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 purple rock cress and expect a good harvest is probably September. Any later than that and your purple rock cress may not have a chance to really do well. Starting your purple rock cress indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Albion may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Albion last frost occurs after April 15 so always be ready to protect your purple rock cress in the event of a surprise late frost.

USDA Zone Info for Albion

Here is the info for USDA Zone 5b.

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

Plants to Grow in Albion

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