When to Plant Plectranthus in Darby, 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.

By using the USDA zone info for Darby you will be able to estimate when it's possible to plant plectranthus.


Planting Calendar for Plectranthus

Frost tolerance for plectranthus: Not tolerant of frost.
When to plant: After all chance of frost has passed.

It's probably a bad idea to plant plectranthus until after all chance of frost has passed because they are not cold tolerant.

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

The earliest that you can plant plectranthus in Darby 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 plectranthus and expect a good harvest is probably August. Any later than that and your plectranthus may not have a chance to fully mature. Starting your plectranthus 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 Darby. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Darby is just an average the actual date of last frost will vary from year to year. Half of the time in Darby there is a last frost after April 15 so make sure that you are prepared to protect your plectranthus in the event of a late frost.

USDA Zone Info for Darby

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 Darby

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