One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Zone 13a you can estimate when it's possible to plant polygonums by using the USDA zone info.

Planting Calendar for Polygonums

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

Polygonums do not do well in cold weather which tells us that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant polygonums in Zone 13a is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant polygonums and expect a good harvest is probably November. 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 few weeks earlier.

Last Frost Date

In Zone 13a it never frosts. In the coldest months of winter you should expect an average low temperature of 60°F.

Always keep in mind that USDA zone info for Zone 13a may not be accurate from year to year and the actual date of last frost will vary from year to year. Since it never frosts in Zone 13a you do not have to be ready to cover your polygonums in the event of a late frost.

USDA Zone Info for Zone 13a

Here is the info for USDA Zone 13a.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	60°F
Highest Expected Low	65°F

This means that on a really cold year, the coldest it will get is 60°F. On most years you should be prepared to experience lows near 65°F.

Plants to Grow in Zone 13a

You may be interested in your other planting guides for Zone 13a.