When to Plant Tritoma in Johnstown, PA

Before planting it is a good idea to find your USDA Zone info to estimate 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 checking out the USDA zone info for Johnstown you should be able to figure out when it's a good idea to plant tritoma.


Planting Calendar for Tritoma

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

Tritoma are very cold tolerant which tells us that you can plant them a quite a bit earlier than plants that are more sensitive to the cold.

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

The earliest that you can plant tritoma in Johnstown 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 tritoma and expect a good harvest is probably September. Any later than that and your tritoma may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your tritoma indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Johnstown. In the coldest months of winter you can expect an average low temperature of -10°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Johnstown and it will vary from year to year. Since half of the time in Johnstown there is a last frost after April 15 be ready to cover your tritoma if you have a surprise 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.