The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Prospect Heights you can estimate when you can plant creeping phlox by using 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 tend to make it in cold weather 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 Prospect Heights 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 couple of weeks 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 Prospect Heights. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Prospect Heights is just an average the actual date of last frost is different every year. Half of the time in Prospect Heights you get surprised by a frost after April 15 so make sure that you are ready to protect your creeping phlox in the event of a late frost.

USDA Zone Info for Prospect Heights

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Prospect Heights

You may be interested in your other planting guides for Prospect Heights.