Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Petoskey you can estimate when you can plant coreopsis by looking at the USDA zone info.

Planting Calendar for Coreopsis

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

Coreopsis do well in moderate cold which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant coreopsis in Petoskey 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. Any later than that and your coreopsis may not have a chance to grow to maturity. If you are starting your coreopsis indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Petoskey. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Petoskey is just an average the actual date of last frost changes from year to year. Half of the time in Petoskey it frosts late in the year after April 15 so be sure to be ready to protect your coreopsis if you have a surprise late frost.

USDA Zone Info for Petoskey

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 Petoskey

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