One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when it's a good idea to plant redvein dock by looking at the USDA zone info for Kelso.

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 are barely cold tolerant you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant redvein dock in Kelso 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. You can get started a few weeks earlier by starting your redvein dock indoors.

Last Frost Date

On average the last frost is on March 15 in Kelso. You can expect an average low temperature of 15°F in the coldest months of winter.

It's important to remember that USDA zone info for Kelso is just an average and the actual date of last frost changes from year to year. Half of the time in Kelso there is a last frost after March 15 so just be sure to be ready to protect your redvein dock in the event of a surprise late frost.

USDA Zone Info for Kelso

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Kelso

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