Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant tarragon in Honolulu can be estimated by referring to the USDA zone info.

Planting Calendar for Tarragon

Frost tolerance for tarragon:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Tarragon do ok in a tiny bit of cold which means that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant tarragon 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 tarragon and expect a good harvest is probably November. Any later than that and your tarragon may not have a chance to fully mature. You can get started a little bit earlier by starting your tarragon indoors.

Last Frost Date

In Honolulu it never frosts. It might get as low as 50°F during the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Honolulu and it changes from year to year. Since it never frosts in Honolulu you do not have to be ready to cover your tarragon in the event of a surprise 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.