The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Sandwich it's a good idea to determine when to plant redvein dock.

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.

Since redvein dock do ok in moderate cold you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant redvein dock in Sandwich 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 grow to maturity. If you are starting your redvein dock indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Sandwich is an average the actual date of last frost changes from year to year. Half of the time in Sandwich you get surprised by a frost after April 15 so just be sure to be ready to cover your redvein dock in the event of a surprise late frost.

USDA Zone Info for Sandwich

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 Sandwich

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