When to Plant Asparagus peas in Swarthmore, PA

One of the first steps you take when you are making a decision about 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.

By checking out the USDA zone info for Swarthmore you will be able to determine when you can plant asparagus peas.


Planting Calendar for Asparagus peas

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

Since asparagus peas are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than other frost tender plants.

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

The earliest that you can plant asparagus peas in Swarthmore 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 asparagus peas and expect a good harvest is probably September. Any later than that and your asparagus peas may not have a chance to really do well. You can get started a little bit earlier by starting your asparagus peas indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Swarthmore. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Swarthmore may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Swarthmore there is a last frost after April 15 so make sure that you are ready to cover your asparagus peas if you have a late frost.

USDA Zone Info for Swarthmore

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 Swarthmore

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