One of the first steps you take when you are estimating 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.

The USDA zone info for Park Hills should be looked at to determine when it's possible to plant tall phlox.

Planting Calendar for Tall Phlox

Frost tolerance for tall phlox:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Tall Phlox do ok in some cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant tall phlox in Park Hills 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 tall phlox and expect a good harvest is probably September. If you wait any later than that and your tall phlox may not have a chance to fully mature. You can get started a few weeks earlier by starting your tall phlox indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Park Hills. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Park Hills is just an average the actual date of last frost will vary from year to year. Half of the time in Park Hills last frost occurs after April 15 so just be sure to be ready to cover your tall phlox in the event of one of those late frosts.

USDA Zone Info for Park Hills

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Park Hills

You may be interested in your other planting guides for Park Hills.