When can I plant Erysimum in Zone 2a

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By using the USDA zone info for Zone 2a you should be able to figure out when you can plant erysimum.


Planting Calendar for Erysimum

Frost tolerance for erysimum: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Erysimum are one of those plants that can tolerate a little bit of cold weather which tells us that you can get them planted earlier than other frost tender plants.

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

The earliest that you can plant erysimum in Zone 2a 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 erysimum and expect a good harvest is probably August. Any later than that and your erysimum may not have a chance to fully mature. Starting your erysimum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 2a the average date of last frost happens on May 15. We should expect an average low temperature of -50°F in the coldest months of winter.

Since the USDA zone info for Zone 2a is just an average our actual date of last frost changes from year to year. Half of the time in Zone 2a last frost occurs after May 15 so just be sure to be ready to protect your erysimum if we have 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.