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Posts tagged Styrofoam cones

Styrofoam Cones – Do They Keep Roses Warm in Winter?

As winter approaches, we worry about our poor plants making it through the cold. All manor of wrapping devices are used to protect them and Styrofoam cones, also called rose cones, have become popular in recent years. Do these contraptions work? If they do, how much warmer do they keep your plants?

There is a lot of talk on the internet about Styrofoam cones. Many extension offices recommend them, and suppliers certainly tell you they work, but I was unable to find a single source of information that actually provided data to support the idea that Styrofoam cones keep plants warmer in winter.

So I decided to do some testing of my own.

Temperature changes with and without a Styrofoam Cone, by GardenMyths.com

Temperature changes with and without a Styrofoam Cone, by GardenMyths.com

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