When to Plant Asparagus Fern in Moorhead, MN

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.

The USDA zone info for Moorhead should be read to figure out when you can plant asparagus fern.

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Planting Calendar for Asparagus Fern

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

You can not plant asparagus fern until after the last frost has passed because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant asparagus fern
Possibly ok, but a risky time to plant asparagus fern
Probably not a good time to plant asparagus fern

The earliest that you can plant asparagus fern in Moorhead is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your asparagus fern may not have a chance to grow to maturity. Starting your asparagus fern indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Moorhead the average date of last frost happens on May 15. You should expect an average low temperature of -30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Moorhead is an average and the actual date of last frost changes from year to year. Since half of the time in Moorhead it frosts late in the year after May 15 be ready to cover your asparagus fern if you have one of those late frosts.

USDA Zone Info for Moorhead

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Moorhead

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