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

In Bluffton you can determine when you can plant polygonums by checking out the USDA zone info.

Planting Calendar for Polygonums

Frost tolerance for polygonums:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant polygonums until after the last frost because they are not cold tolerant.

The earliest that you can plant polygonums in Bluffton 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 polygonums and expect a good harvest is probably August. If you wait any later than that and your polygonums may not have a chance to grow to maturity. Starting your polygonums indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Bluffton. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Bluffton may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Bluffton it frosts late in the year after April 15 be ready to protect your polygonums in the event of a surprise late frost.

USDA Zone Info for Bluffton

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 Bluffton

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