The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant asparagus fern in Grafton should be estimated by using the USDA zone info.

Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant asparagus fern until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant asparagus fern in Grafton 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. Any later than that and your asparagus fern may not have a chance to fully mature. You can get started a little bit earlier by starting your asparagus fern indoors.

Last Frost Date

In Grafton the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Grafton is an average the actual date of last frost changes from year to year. Half of the time in Grafton last frost occurs after April 15 so just be sure to be ready to protect your asparagus fern if you have a surprise late frost.

USDA Zone Info for Grafton

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 Grafton

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