The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant oleander in Honolulu should be determined by checking out the USDA zone info.

Planting Calendar for Oleander

Frost tolerance for oleander:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's not a good idea to plant oleander until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant oleander 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 oleander and expect a good harvest is probably November. If you wait any later than that and your oleander may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your oleander indoors.

Last Frost Date

In Honolulu it never frosts. You can expect an average low temperature of 50°F in the coldest months of winter.

Since the USDA zone info for Honolulu is just an average 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 oleander if you have one of those late frosts.

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.