Before planting it is a good idea to find your USDA Zone info to determine your garden 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 estimate when it's possible to plant polygonums in Independence by referring to the USDA zone info.

Planting Calendar for Polygonums

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

It's probably not a good idea to plant polygonums until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant polygonums in Independence 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 really do well. You can get started a few weeks earlier by starting your polygonums indoors.

Last Frost Date

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

Since the USDA zone info for Independence is an average the actual date of last frost is different every year. Since half of the time in Independence you get a frost after April 15 be ready to protect your polygonums in the event of a late frost.

USDA Zone Info for Independence

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 Independence

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