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Have I got a really tall Holyhock?

Im a novice but i think Ive got a really tall hollyhock - Can anyone tell me why it may have grown so well in a patch of my garden that I thought would never have enough nutrients for anything to grow (under the decking/shady/covered in stones) a family member planted it last year on a whim and look how well its doing!

The record is almost 20ft mine is currently at 15ft.

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Posts

  • flowering roseflowering rose Posts: 1,632

    its because they like dry poor soil and that's why sometimes you see them growing well next too walls.

  • CharleyDCharleyD Posts: 440

    So would clay soil suit them?  And can they be left in the ground over winter (the ones I have are perennials).

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