When can I plant Asparagus Fern in Zone 2a

One of the best tools that we have as gardeners to help us determine our gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

It's possible to figure out when it's possible to plant asparagus fern by reviewing the USDA zone info for Zone 2a.


Planting Calendar for Asparagus Fern

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

Asparagus Fern are not cold tolerant which means that you really should wait until it warms up after the last frost has passed before you can plant them.

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 Zone 2a 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. If you wait any later than that and your asparagus fern may not have a chance to fully mature. Starting your asparagus fern indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Zone 2a. It might get as low as -50°F during the coldest months of winter.

Always keep in mind that USDA zone info for Zone 2a is just an average and our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 2a last frost occurs after May 15 be ready to cover your asparagus fern in the event of one of those late frosts.

USDA Zone Info for Zone 2a

Here is the info for USDA Zone 2a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-50°F
Highest Expected Low-45°F

This means that on a really cold year, the coldest it will get is -50°F. On most years you should be prepared to experience lows near -45°F.

Plants to Grow in Zone 2a

You may be interested in our other planting guides for Zone 2a.