One of the first steps you take when you are making a decision about 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.

A common way of estimating when it's a good idea to plant lettuce is to examine the USDA zone info for Red Wing.

Planting Calendar for Lettuce

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

Since lettuce are moderately cold tolerant you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant lettuce in Red Wing 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. If you wait any later than that and your lettuce may not have a chance to really do well. You can get started a few weeks earlier by starting your lettuce indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Red Wing. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Red Wing may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Red Wing you get a frost after May 15 be ready to protect your lettuce in the event of a late frost.

USDA Zone Info for Red Wing

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Red Wing

You may be interested in your other planting guides for Red Wing.