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

A common way of getting a good idea when it's a good idea to plant bells of ireland is to refer to the USDA zone info for Honolulu.

Planting Calendar for Bells of Ireland

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

Bells of Ireland are one of those plants that can tolerate a tiny bit of cold weather which means that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant bells of ireland 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 bells of ireland and expect a good harvest is probably November. If you wait any later than that and your bells of ireland may not have a chance to grow to maturity. If you are starting your bells of ireland indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Honolulu is not always accurate and the actual date of last frost will vary from year to year. Since it never frosts in Honolulu you do not have to be ready to cover your bells of ireland if you have 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.