Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when to plant coreopsis is to consult the USDA zone info for Owensboro.

Planting Calendar for Coreopsis

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

Coreopsis do ok in a little bit of cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant coreopsis in Owensboro 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 coreopsis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your coreopsis may not have a chance to fully mature. You can get started a few weeks earlier by starting your coreopsis indoors.

Last Frost Date

The average date of last frost is April 15 in Owensboro. In the coldest months of winter you should expect an average low temperature of -5°F.

Just be sure to remember that USDA zone info for Owensboro is an average and the actual date of last frost will vary from year to year. Half of the time in Owensboro there is a last frost after April 15 so make sure that you are prepared to protect your coreopsis in the event of one of those late frosts.

USDA Zone Info for Owensboro

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 Owensboro

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