When to Plant Asparagus lettuce in Philadelphia, PA

One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

You can determine when it's a good idea to plant asparagus lettuce in Philadelphia 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 when the weather gets warmer.

It's not a good idea to plant asparagus lettuce until after all chance of frost has passed because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant asparagus lettuce
Possibly ok, but a risky time to plant asparagus lettuce
Probably not a good time to plant asparagus lettuce

The earliest that you can plant asparagus lettuce in Philadelphia 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. Any later than that and your asparagus lettuce may not have a chance to fully mature. Starting your asparagus lettuce indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Philadelphia. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Philadelphia and it can change quite a bit from year to year. Half of the time in Philadelphia you get surprised by a frost after April 15 so just be sure to be ready to cover your asparagus lettuce in the event of one of those late frosts.

USDA Zone Info for Philadelphia

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

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

Plants to Grow in Philadelphia

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