The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Redwood City should be used to determine 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.

Redvein Dock are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant redvein dock in Redwood City 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. If you wait 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

On average all chance of frost has passed is on February 15 in Redwood City. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Redwood City is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Redwood City you get surprised by a frost after February 15 be ready to protect your redvein dock in the event of a late frost.

USDA Zone Info for Redwood City

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Redwood City

You may be interested in your other planting guides for Redwood City.