The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Rockland you can figure out when it's the best time to plant sweet potatos by looking at the USDA zone info.

Planting Calendar for Sweet Potatos

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

It's probably not a good idea to plant sweet potatos until after the last frost has passed because they require warm weather.

The earliest that you can plant sweet potatos in Rockland 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 potatos and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet potatos may not have a chance to really do well. You can get started a few weeks earlier by starting your sweet potatos indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Rockland. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Rockland is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Rockland it frosts late in the year after April 15 so just be sure to be ready to cover your sweet potatos if you have a late frost.

USDA Zone Info for Rockland

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 Rockland

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