One of the best tools that you have as gardeners to help us determine 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 estimate when it's a good idea to plant creeping phlox in Port Arthur by looking at the USDA zone info.

Planting Calendar for Creeping Phlox

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

Creeping Phlox can survive in quite a bit of cold which tells us that you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant creeping phlox 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 creeping phlox and expect a good harvest is probably October. If you wait any later than that and your creeping phlox may not have a chance to grow to maturity. Starting your creeping phlox indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Port Arthur. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Port Arthur is an average the actual date of last frost changes from year to year. Half of the time in Port Arthur it frosts late in the year after February 15 so be sure to be ready to cover your creeping phlox in the event of 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.