Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Port Arthur should be reviewed to estimate when you can plant arabis.

Planting Calendar for Arabis

Frost tolerance for arabis:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Arabis are very cold tolerant which tells us that you can plant them a quite a bit earlier than other plants that might not handle the cold.

The earliest that you can plant arabis in Port Arthur 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 arabis and expect a good harvest is probably October. If you wait any later than that and your arabis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your arabis indoors.

Last Frost Date

On average the last frost is on February 15 in Port Arthur. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Port Arthur is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Port Arthur you get surprised by a frost after February 15 so be sure to be ready to cover your arabis if you have one of those late frosts.

USDA Zone Info for Port Arthur

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Port Arthur

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