The USDA Zone info is a great tool for gardeners to help us estimate 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 earliest that you can plant scarlet pimpernels in Honolulu can be figured out by reviewing the USDA zone info.

Planting Calendar for Scarlet Pimpernels

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

Since scarlet pimpernels do ok in moderate cold you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant scarlet pimpernels 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 scarlet pimpernels and expect a good harvest is probably November. Any later than that and your scarlet pimpernels may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your scarlet pimpernels 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 USDA zone info for Honolulu is just an average and the actual date of last frost changes from year to year. Since it never frosts in Honolulu you do not have to be ready to cover your scarlet pimpernels 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.