One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when it's the best time to plant romaine lettuce by reviewing the USDA zone info for Mansfield.

Planting Calendar for Romaine lettuce

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

You can plant romaine lettuce earlier in the year because they do well in cold.

The earliest that you can plant romaine lettuce in Mansfield 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. Any later than that and your romaine lettuce may not have a chance to grow to maturity. Starting your romaine lettuce indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Mansfield. You can expect an average low temperature of 15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Mansfield is just an average and the actual date of last frost will vary from year to year. Half of the time in Mansfield you get surprised by a frost after March 15 so just be sure to be ready to protect your romaine lettuce if you have a surprise late frost.

USDA Zone Info for Mansfield

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Mansfield

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