One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's the best time to plant creeping phlox by using the USDA zone info for Donora.

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 do well in cold which tells us that you can get them planted much earlier than other frost tender plants.

The earliest that you can plant creeping phlox in Donora 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 creeping phlox and expect a good harvest is probably September. You probably don't want to wait any later than that or else your creeping phlox may not have a chance to grow to maturity. You can get started a little bit earlier by starting your creeping phlox indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Donora. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Donora is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Donora it frosts late in the year after April 15 be ready to cover your creeping phlox in the event of a late frost.

USDA Zone Info for Donora

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Donora

You may be interested in your other planting guides for Donora.