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.

In Willowbrook you can estimate when it's possible to plant redvein dock by using the USDA zone info.

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.

You can plant redvein dock slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant redvein dock in Willowbrook 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 few weeks earlier by starting your redvein dock indoors.

Last Frost Date

In Willowbrook the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Willowbrook and it changes from year to year. Since half of the time in Willowbrook you get surprised by a frost after April 15 be ready to cover your redvein dock in the event of one of those late frosts.

USDA Zone Info for Willowbrook

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Willowbrook

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