The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's possible to plant sweet potatos in Blaine by referring to the USDA zone info.

Planting Calendar for Sweet Potatos

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

You can not plant sweet potatos until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant sweet potatos in Blaine 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 grow to maturity. If you are starting your sweet potatos indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Blaine. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Blaine is not always accurate the actual date of last frost will vary from year to year. Half of the time in Blaine you get a frost after March 15 so make sure that you are ready to protect your sweet potatos if you have one of those late frosts.

USDA Zone Info for Blaine

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Blaine

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