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.

By looking at the USDA zone info for Holtville you should be able to figure out when it's the best time 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 are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant redvein dock in Holtville is February. However, you really should wait until March 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 September. Any later than that and your redvein dock may not have a chance to grow to maturity. You can get started a little bit earlier by starting your redvein dock indoors.

Last Frost Date

The average date of last frost is January 31 in Holtville. You can expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Holtville is an average and the actual date of last frost is different every year. Since half of the time in Holtville you get surprised by a frost after January 31 be ready to cover your redvein dock in the event of a surprise late frost.

USDA Zone Info for Holtville

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Holtville

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