Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Upper Sandusky you can estimate when it's possible to plant purple rock cress by checking out the USDA zone info.

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.

You can plant purple rock cress a lot earlier in the year because they are very cold tolerant.

The earliest that you can plant purple rock cress in Upper Sandusky 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. You probably don't want to wait any later than that or else your purple rock cress may not have a chance to grow to maturity. If you are starting your purple rock cress indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Upper Sandusky. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Upper Sandusky is an average and the actual date of last frost will vary from year to year. Half of the time in Upper Sandusky last frost occurs after April 15 so just be sure to be ready to protect your purple rock cress if you have one of those late frosts.

USDA Zone Info for Upper Sandusky

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 Upper Sandusky

You may be interested in your other planting guides for Upper Sandusky.