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.

A way of getting a good idea when you can plant asparagus fern is to check out the USDA zone info for North Liberty.

Planting Calendar for Asparagus Fern

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

It's probably 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 North Liberty 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 grow to maturity. If you are starting your asparagus fern indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for North Liberty is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in North Liberty you get surprised by a frost after April 15 be ready to protect your asparagus fern if you have a surprise late frost.

USDA Zone Info for North Liberty

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 North Liberty

You may be interested in your other planting guides for North Liberty.