When can I plant Erysimum in Zone 8a

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

The first opportunity to plant erysimum in Zone 8a should be estimated by reviewing the USDA zone info.


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 moderately cold tolerant which tells us that you can get them planted earlier than more sensitive 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 8a is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant erysimum and expect a good harvest is probably September. Any later than that and your erysimum may not have a chance to grow to maturity. If you are starting your erysimum 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 March 15 in Zone 8a. We should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Zone 8a is just an average our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 8a we get surprised by a frost after March 15 be ready to cover your erysimum if we have a late frost.

USDA Zone Info for Zone 8a

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low10°F
Highest Expected Low15°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 15°F.

Plants to Grow in Zone 8a

You may be interested in our other planting guides for Zone 8a.