The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Ellensburg you can estimate when it's possible to plant creeping phlox by reviewing 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.

You can plant creeping phlox a lot earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant creeping phlox in Ellensburg 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. You can get started a little bit earlier by starting your creeping phlox indoors.

Last Frost Date

On average the last frost is on April 15 in Ellensburg. You can expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Ellensburg is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Ellensburg you get a frost after April 15 be ready to protect your creeping phlox if you have a surprise late frost.

USDA Zone Info for Ellensburg

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 Ellensburg

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