Cosmos Flowers
Q.

growing cosmos

Zone 17102 | 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?

    A.
    A.Answers to this queston: Add Answer
    Downtoearthdigs
    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.

    https://www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-cosmos.htm

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