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.

One way of figuring out when it's possible to plant redvein dock is to use the USDA zone info for Glen Carbon.

Planting Calendar for Redvein Dock

Frost tolerance for redvein dock:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Redvein Dock do ok in very little cold which tells us that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant redvein dock in Glen Carbon is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant redvein dock and expect a good harvest is probably August. You probably don't want to wait any later than that or else your redvein dock may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your redvein dock indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Glen Carbon may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Glen Carbon you get a frost after April 15 so be sure to be ready to protect your redvein dock in the event of a late frost.

USDA Zone Info for Glen Carbon

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 Glen Carbon

You may be interested in your other planting guides for Glen Carbon.