One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when to plant redvein dock by checking out the USDA zone info for Chicago Ridge.

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 mild cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant redvein dock in Chicago Ridge 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. Any later than that and your redvein dock may not have a chance to fully mature. If you are starting your redvein dock indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Chicago Ridge. 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 Chicago Ridge is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Chicago Ridge it frosts late in the year after April 15 so be sure to be ready to cover your redvein dock if you have one of those late frosts.

USDA Zone Info for Chicago Ridge

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 Chicago Ridge

You may be interested in your other planting guides for Chicago Ridge.