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.

In Frederick you can estimate when it's possible to plant arabis by checking out the USDA zone info.

Planting Calendar for Arabis

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

You can plant arabis earlier in the year because they do well in cold.

The earliest that you can plant arabis in Frederick 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 arabis and expect a good harvest is probably September. If you wait any later than that and your arabis may not have a chance to really do well. You can get started a few weeks earlier by starting your arabis indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Frederick. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Frederick is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Frederick you get a frost after April 15 be ready to protect your arabis in the event of a surprise late frost.

USDA Zone Info for Frederick

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 Frederick

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