One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. 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 mecardonia in Honolulu should be estimated by looking at the USDA zone info.

Planting Calendar for Mecardonia

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

It's not a good idea to plant mecardonia until after the last frost because they are not cold tolerant.

The earliest that you can plant mecardonia 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 mecardonia and expect a good harvest is probably November. Any later than that and your mecardonia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your mecardonia 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 an average the actual date of last frost can change quite a bit from year to year. Since it never frosts in Honolulu you do not have to be ready to protect your mecardonia 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.