When can I plant Lettuce in Zone 3a

One of the best tools that we have as gardeners to help us determine 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.

In Zone 3a you can estimate when it's possible to plant lettuce by checking out the USDA zone info.


Planting Calendar for Lettuce

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

You can plant lettuce a bit earlier in the year because they are moderately cold tolerant.

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

The earliest that you can plant lettuce 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 lettuce and expect a good harvest is probably August. You probably don't want to wait any later than that or else your lettuce may not have a chance to fully mature. You can get started a few weeks earlier by starting your lettuce indoors.

Last Frost Date

The average date of last frost is May 15 in Zone 3a. In the coldest months of winter we should expect an average low temperature of -40°F.

Since the USDA zone info for Zone 3a is just an average our actual date of last frost changes from year to year. Since half of the time in Zone 3a we get surprised by a frost after May 15 be ready to protect your lettuce 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.