Q.

Can I keep perinneals from my garden in pots over the winter? What is the best soil to use?

Zone 49855-1551 | bbnfuller added on September 12, 2018 | Answered

I will be moving soon and want to take a few plants with me. they will need to be in pots until I can plant them in the spring. Can I put them in pots and what is the best soil to use? I plan on planting the whole pot in the ground over the winter.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 14, 2018

Any good potting soil can be used with containerized perennials.
The general consensus seems to be that the best way to overwinter containerized perennials is to take the entire pot and bury it in the ground. This way, the roots are protected like they would be if the plants were actually planted in the garden. Just be sure not to leave the pot in the ground too long in the spring or the roots will start to grow out the drainage holes, anchoring the pot into the ground.
You can overwinter them by moving the pots into a cold frame or unheated garage for the winter after the first hard frost. Since all perennials require a period of dormancy or a cold treatment to bloom, don't overwinter them in a greenhouse or other warm place where they will not go dormant.
If you are overwintering your containers outside, place a grouping of pots as close together as possible in a sheltered site on the ground. This way, the pots can absorb the heat and moisture from the soil. The east side of the house typically is a good spot. Do not overwinter the containers on pavement or any other surface (such as a deck) raised above ground level. Containerized perennials left exposed on higher levels during the winter have little chance of overwintering successfully.
You'll need to cover the pots with some sort of insulating material. Try mounding leaves or evergreen boughs on top of the pots, followed by a thick layer of snow. If snow is not reliable in your area, use an insulating blanket made expressly for this purpose. You can also try wrapping the pots themselves in some sort of insulating material for extra protection.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More