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.

It's a good idea to figure out when it's a good idea to plant creeping phlox by referring to the USDA zone info for Nitro.

Planting Calendar for Creeping Phlox

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

Since creeping phlox do well in cold you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant creeping phlox in Nitro 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. Any later than that and your creeping phlox may not have a chance to fully mature. If you are starting your creeping phlox indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Nitro the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Nitro is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Nitro you get surprised by a frost after April 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 Nitro

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 Nitro

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