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.

In Powell you can estimate when it's possible to plant tritoma by checking out the USDA zone info.

Planting Calendar for Tritoma

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

Since tritoma do well in cold you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant tritoma in Powell 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. If you wait any later than that and your tritoma may not have a chance to fully mature. You can get started a little bit earlier by starting your tritoma indoors.

Last Frost Date

The average date of last frost is April 15 in Powell. In the coldest months of winter you should expect an average low temperature of -10°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Powell and it is different every year. Since half of the time in Powell you get a frost after April 15 be ready to cover your tritoma if you have a late frost.

USDA Zone Info for Powell

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 Powell

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