One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In York you can determine when it's a good idea to plant sweet potato vine by reviewing the USDA zone info.

Planting Calendar for Sweet Potato Vine

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

You should not plant sweet potato vine until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant sweet potato vine in York 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. If you wait any later than that and your sweet potato vine may not have a chance to grow to maturity. If you are starting your sweet potato vine 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 York. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for York is not always accurate the actual date of last frost is different every year. Since half of the time in York you get surprised by a frost after April 15 be ready to cover your sweet potato vine if you have one of those late frosts.

USDA Zone Info for York

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in York

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