One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when to plant saxifraga is to use the USDA zone info for Port Isabel.

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.

Since saxifraga are barely cold tolerant you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant saxifraga in Port Isabel is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant saxifraga and expect a good harvest is probably September. Any later than that and your saxifraga may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your saxifraga indoors.

Last Frost Date

In Port Isabel the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Port Isabel and it changes from year to year. Half of the time in Port Isabel it frosts late in the year after January 31 so make sure that you are ready to cover your saxifraga in the event of a surprise late frost.

USDA Zone Info for Port Isabel

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Port Isabel

You may be interested in your other planting guides for Port Isabel.