When can I plant Iceberg lettuce in Zone 1b

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

In Zone 1b you can figure out when it's possible to plant iceberg lettuce by checking out the USDA zone info.


Planting Calendar for Iceberg lettuce

Frost tolerance for iceberg lettuce: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

You can plant iceberg lettuce just a tiny bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

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

The earliest that you can plant iceberg lettuce in Zone 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant iceberg lettuce and expect a good harvest is probably July. You probably don't want to wait any later than that or else your iceberg lettuce may not have a chance to really do well. Starting your iceberg lettuce indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on June 15 in Zone 1b. In the coldest months of winter we can expect an average low temperature of -55°F.

Always keep in mind that USDA zone info for Zone 1b may not be accurate from year to year and our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 1b there is a last frost after June 15 be ready to cover your iceberg lettuce in the event of one of those late frosts.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.