Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of figuring out when to plant sweet potato vine is to check out the USDA zone info for Flagstaff.

Planting Calendar for Sweet Potato Vine

Frost tolerance for sweet potato vine:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since sweet potato vine are not cold tolerant you must wait until after the last frost has passed before you can plant them.

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

Last Frost Date

The average date of last frost is April 15 in Flagstaff. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Flagstaff is an average and the actual date of last frost will vary from year to year. Since half of the time in Flagstaff you get surprised by a frost after April 15 be ready to protect your sweet potato vine in the event of one of those late frosts.

USDA Zone Info for Flagstaff

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 Flagstaff

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