When to Plant Aubretia in Swarthmore, PA

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

By reviewing the USDA zone info for Swarthmore it's a good idea to figure out when it's a good idea to plant aubretia.


Planting Calendar for Aubretia

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

Aubretia do well in quite a bit of cold which tells us that you can plant them a lot earlier in the year than more sensitive plants.

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

The earliest that you can plant aubretia 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 aubretia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your aubretia may not have a chance to really do well. If you are starting your aubretia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Swarthmore the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Swarthmore is an average and the actual date of last frost changes from year to year. Since half of the time in Swarthmore there is a last frost after April 15 be ready to cover your aubretia if you have one of those late frosts.

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.