The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Pratt you can figure out when it's a good idea to plant romaine lettuce by checking out the USDA zone info.

Planting Calendar for Romaine lettuce

Frost tolerance for romaine lettuce:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Romaine lettuce are very cold tolerant which means that you can plant them a quite a bit earlier than more sensitive plants.

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

Last Frost Date

In Pratt the average date of last frost happens on April 15. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Pratt and it changes from year to year. Half of the time in Pratt there is a last frost after April 15 so always be ready to protect your romaine lettuce in the event of a surprise late frost.

USDA Zone Info for Pratt

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 Pratt

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