The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Grantsville you can figure out when it's possible to plant tritoma by referring to 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.

Tritoma tend to make it in quite a bit of cold which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant tritoma in Grantsville 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 grow to maturity. Starting your tritoma indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Grantsville. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Grantsville may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Grantsville there is a last frost after April 15 so always be ready to cover your tritoma if you have a late frost.

USDA Zone Info for Grantsville

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 Low	0°F
Highest Expected Low	5°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 Grantsville

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