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.

The best time to plant hypericum in Park Hills should be estimated by looking at the USDA zone info.

Planting Calendar for Hypericum

Frost tolerance for hypericum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Hypericum are barely cold tolerant which means that you can start planting them slightly earlier than other frost tender plants.

The earliest that you can plant hypericum in Park Hills is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant hypericum and expect a good harvest is probably August. If you wait any later than that and your hypericum may not have a chance to fully mature. If you are starting your hypericum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Park Hills. In the coldest months of winter you should expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Park Hills is just an average and the actual date of last frost will vary from year to year. Half of the time in Park Hills you get surprised by a frost after April 15 so make sure that you are ready to cover your hypericum in the event of a late frost.

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.