One of the best tools that you have as gardeners to help us determine 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 should be able to figure out when to plant vinca vine by reviewing the USDA zone info for Mammoth Lakes.

Planting Calendar for Vinca Vine

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

Vinca Vine do ok in moderate cold which means that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant vinca vine 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 vinca vine and expect a good harvest is probably September. If you wait any later than that and your vinca vine may not have a chance to really do well. You can get started a couple of weeks earlier by starting your vinca vine indoors.

Last Frost Date

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

Remember that USDA zone info for Mammoth Lakes is not always accurate and the actual date of last frost is different every year. Half of the time in Mammoth Lakes you get surprised by a frost after April 15 so make sure that you are ready to protect your vinca vine 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.