The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of getting a good idea when you can plant redvein dock is to use the USDA zone info for Honolulu.

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 can survive in mild cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant redvein dock in Honolulu is January. However, you really should wait until February 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 November. If you wait 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 Honolulu it never frosts. It might get as low as 50°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Honolulu is just an average and the actual date of last frost is different every year. Since it never frosts in Honolulu you do not have to be ready to protect your redvein dock if you have a late frost.

USDA Zone Info for Honolulu

Here is the info for USDA Zone 12a.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	50°F
Highest Expected Low	55°F

This means that on a really cold year, the coldest it will get is 50°F. On most years you should be prepared to experience lows near 55°F.

Plants to Grow in Honolulu

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