The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when to plant lettuce is to look at the USDA zone info for Murphysboro.

Planting Calendar for Lettuce

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

Since lettuce do well in moderate cold you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lettuce in Murphysboro is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant lettuce and expect a good harvest is probably September. If you wait any later than that and your lettuce may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your lettuce indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Murphysboro. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Murphysboro may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Murphysboro it frosts late in the year after April 15 be ready to cover your lettuce if you have one of those late frosts.

USDA Zone Info for Murphysboro

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Murphysboro

You may be interested in your other planting guides for Murphysboro.