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.

One way of getting a good idea when it's the best time to plant tritoma is to look at the USDA zone info for Alpine.

Planting Calendar for Tritoma

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

Tritoma do well in cold which means that you can start planting them much earlier than more sensitive plants.

The earliest that you can plant tritoma in Alpine 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. You can get started a little bit earlier by starting your tritoma indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Alpine. It might get as low as -5°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Alpine and it can change quite a bit from year to year. Half of the time in Alpine there is a last frost after April 15 so make sure that you are ready to cover your tritoma in the event of a surprise late frost.

USDA Zone Info for Alpine

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Alpine

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