The USDA Zone info is a great tool for gardeners to help us estimate 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.

In Maquoketa you can determine when it's the best time to plant polygonums 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.

Since polygonums require warm weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant polygonums in Maquoketa 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. Any later than that and your polygonums may not have a chance to grow to maturity. If you are starting your polygonums indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Maquoketa. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that USDA zone info for Maquoketa is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Maquoketa you get a frost after April 15 be ready to cover your polygonums in the event of a surprise late frost.

USDA Zone Info for Maquoketa

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Maquoketa

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