When to Plant Streptocarpella in Johnstown, PA

One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

The first chance to plant streptocarpella in Johnstown should be estimated by using the USDA zone info.


Planting Calendar for Streptocarpella

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

It's a bad idea to plant streptocarpella until after all chance of frost has passed because they require warm weather.

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

The earliest that you can plant streptocarpella in Johnstown 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 streptocarpella and expect a good harvest is probably August. If you wait any later than that and your streptocarpella may not have a chance to fully mature. You can get started a little bit earlier by starting your streptocarpella indoors.

Last Frost Date

In Johnstown the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Johnstown is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Johnstown you get a frost after April 15 be ready to cover your streptocarpella in the event of a late frost.

USDA Zone Info for Johnstown

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Johnstown

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