When can I plant Mustard greens in Zone 3a

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

One way of getting a good idea when to plant mustard greens is to refer to the USDA zone info for Zone 3a.


Planting Calendar for Mustard greens

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

Mustard greens tend to make it in mild cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant mustard greens in Zone 3a is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant mustard greens and expect a good harvest is probably August. Any later than that and your mustard greens may not have a chance to fully mature. Starting your mustard greens indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Zone 3a. We can expect an average low temperature of -40°F in the coldest months of winter.

Since the USDA zone info for Zone 3a 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 3a last frost occurs after May 15 be ready to cover your mustard greens in the event of a surprise late frost.

USDA Zone Info for Zone 3a

Here is the info for USDA Zone 3a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-40°F
Highest Expected Low-35°F

This means that on a really cold year, the coldest it will get is -40°F. On most years you should be prepared to experience lows near -35°F.

Plants to Grow in Zone 3a

You may be interested in our other planting guides for Zone 3a.