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.

In Frederick you can estimate when it's possible to plant asparagus fern by using the USDA zone info.

Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since asparagus fern are not cold tolerant it is important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant asparagus fern in Frederick is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant asparagus fern and expect a good harvest is probably August. If you wait any later than that and your asparagus fern may not have a chance to really do well. Starting your asparagus fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Frederick. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Frederick is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Frederick it frosts late in the year after April 15 so just be sure to be ready to protect your asparagus fern in the event of a late frost.

USDA Zone Info for Frederick

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 Frederick

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