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.

A way of determining when to plant lettuce is to refer to the USDA zone info for Richmond Hill.

Planting Calendar for Lettuce

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

Lettuce can survive in mild cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant lettuce in Richmond Hill 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

The average date of last frost is March 15 in Richmond Hill. In the coldest months of winter you should expect an average low temperature of 15°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Richmond Hill and it will vary from year to year. Since half of the time in Richmond Hill you get a frost after March 15 be ready to cover your lettuce in the event of a surprise late frost.

USDA Zone Info for Richmond Hill

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 Richmond Hill

You may be interested in your other planting guides for Richmond Hill.