One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when to plant peonies by reviewing the USDA zone info for Marietta.

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.

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

The earliest that you can plant peonies in Marietta 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 few 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 Marietta. In the coldest months of winter you can expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Marietta is an average and the actual date of last frost is different every year. Since half of the time in Marietta you get a frost after April 15 be ready to protect your peonies in the event of a surprise late frost.

USDA Zone Info for Marietta

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 Marietta

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