One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

You can figure out when it's the best time to plant saxifraga in Honolulu by checking out the USDA zone info.

Planting Calendar for Saxifraga

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

You can plant saxifraga a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

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

Last Frost Date

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

Since the USDA zone info for Honolulu is just an average the actual date of last frost is different every year. Since it never frosts in Honolulu you do not have to be ready to protect your saxifraga in the event of a 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.