When to Plant Corn salad in Swarthmore, PA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant corn salad is to look at the USDA zone info for Swarthmore.


Planting Calendar for Corn salad

Frost tolerance for corn salad: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Since corn salad require warm weather you have to wait until after all chance of frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant corn salad
Possibly ok, but a risky time to plant corn salad
Probably not a good time to plant corn salad

The earliest that you can plant corn salad in Swarthmore 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 corn salad and expect a good harvest is probably August. Any later than that and your corn salad may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your corn salad indoors.

Last Frost Date

The average date of last frost is April 15 in Swarthmore. You should expect an average low temperature of 0°F in the coldest months of winter.

Remember that USDA zone info for Swarthmore is an average and the actual date of last frost changes from year to year. Half of the time in Swarthmore there is a last frost after April 15 so be sure to be ready to protect your corn salad in the event of a surprise 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.