Cosmos Flowers

Growing Cosmos

Anonymous added on May 16, 2018 | Answered

How deep should the soil be for growing cosmos. If I plant them in a large box that is only 4" deep will the cosmos survive by spreading roots horizontally?

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Certified GKH Gardening Expert
Answered on May 17, 2018

You may want to have a container that is closer to 8" in depth for Cosmos.

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