One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when to plant asparagus lettuce in Richmond Hill by referring to the USDA zone info.

Planting Calendar for Asparagus lettuce

Frost tolerance for asparagus lettuce:	Not tolerant of frost.
When to plant:	After the last frost.

Since asparagus lettuce are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant asparagus lettuce in Richmond Hill is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant asparagus lettuce and expect a good harvest is probably August. You probably don't want to wait any later than that or else your asparagus lettuce may not have a chance to fully mature. If you are starting your asparagus lettuce indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Richmond Hill is just an average the actual date of last frost will vary from year to year. Half of the time in Richmond Hill there is a last frost after March 15 so just be sure to be ready to protect your asparagus lettuce if you have a 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.