One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Zone 1b should be looked at to estimate when you can plant lettuce.

Planting Calendar for Lettuce

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

Lettuce do well in moderate cold which means that you can start planting them earlier than other plants that might not handle the cold.

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

The last month that you can plant lettuce and expect a good harvest is probably July. You probably don't want to wait any later than that or else your lettuce may not have a chance to grow to maturity. If you are starting your lettuce indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is June 15 in Zone 1b. You should expect an average low temperature of -55°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 1b is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Zone 1b you get surprised by a frost after June 15 so make sure that you are ready to protect your lettuce if you have a late frost.

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 your other planting guides for Zone 1b.