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

It's possible to determine when you can plant violets by reviewing the USDA zone info for Mammoth Lakes.

Planting Calendar for Violets

Frost tolerance for violets:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Violets can survive in some cold which means that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant violets in Mammoth Lakes 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 violets and expect a good harvest is probably September. You probably don't want to wait any later than that or else your violets may not have a chance to grow to maturity. If you are starting your violets indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Mammoth Lakes. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Mammoth Lakes is an average the actual date of last frost will vary from year to year. Since half of the time in Mammoth Lakes it frosts late in the year after April 15 be ready to protect your violets in the event of 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.