One of the first steps you take when you are getting a good idea 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 Olathe should be looked at to estimate when it's possible to plant peonies.

Planting Calendar for Peonies

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

Since peonies are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than more sensitive plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Olathe. In the coldest months of winter you should expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Olathe is an average and the actual date of last frost changes from year to year. Half of the time in Olathe you get surprised by a frost after April 15 so be sure to be ready to cover your peonies in the event of a surprise late frost.

USDA Zone Info for Olathe

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 Olathe

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