Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's a good idea to plant morning glory in Mammoth Lakes by checking out the USDA zone info.

Planting Calendar for Morning Glory

Frost tolerance for morning glory:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Morning Glory do not do well in cold weather which tells us that you need to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant morning glory 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 morning glory and expect a good harvest is probably August. Any later than that and your morning glory may not have a chance to really do well. You can get started a couple of weeks earlier by starting your morning glory indoors.

Last Frost Date

In Mammoth Lakes the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Mammoth Lakes is an average and the actual date of last frost will vary from year to year. Since half of the time in Mammoth Lakes you get surprised by a frost after April 15 be ready to cover your morning glory in the event of one of those late frosts.

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.