When to Plant Arabis in Ridley Park, PA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant arabis in Ridley Park can be estimated by reviewing the USDA zone info.


Planting Calendar for Arabis

Frost tolerance for arabis: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Since arabis are very cold tolerant you can plant them quite a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant arabis in Ridley Park 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 arabis and expect a good harvest is probably September. Any later than that and your arabis may not have a chance to really do well. If you are starting your arabis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Ridley Park the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for Ridley Park is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Ridley Park there is a last frost after April 15 be ready to protect your arabis in the event of one of those late frosts.

USDA Zone Info for Ridley Park

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 Ridley Park

You may be interested in your other planting guides for Ridley Park.