Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 estimate when it's the best time to plant sweet potato vine by using the USDA zone info for Key West.

Planting Calendar for Sweet Potato Vine

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

Since sweet potato vine do not do well in cold weather it is important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant sweet potato vine in Key West is January. However, you really should wait until February 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 November. You probably don't want to wait any later than that or else your sweet potato vine may not have a chance to grow to maturity. You can get started a little bit earlier by starting your sweet potato vine indoors.

Last Frost Date

In Key West it never frosts. In the coldest months of winter you should expect an average low temperature of 45°F.

It's important to remember that USDA zone info for Key West is an average and the actual date of last frost will vary from year to year. Since it never frosts in Key West you do not have to be ready to cover your sweet potato vine if you have one of those late frosts.

USDA Zone Info for Key West

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	45°F
Highest Expected Low	50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Key West

You may be interested in your other planting guides for Key West.