One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when you can plant trachelium in Mammoth Lakes by referring to the USDA zone info.

Planting Calendar for Trachelium

Frost tolerance for trachelium:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant trachelium until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant trachelium in Mammoth Lakes 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 trachelium and expect a good harvest is probably August. Any later than that and your trachelium may not have a chance to really do well. You can get started a few weeks earlier by starting your trachelium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Mammoth Lakes. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Mammoth Lakes is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Mammoth Lakes it frosts late in the year after April 15 so be sure to be ready to cover your trachelium if you have a surprise late frost.

USDA Zone Info for Mammoth Lakes

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 Mammoth Lakes

You may be interested in your other planting guides for Mammoth Lakes.