Leaves turning brown on hop plant

Discussion in 'HortForum' started by Daniel Mosquin, Aug 26, 2002.

  1. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Vancouver, British Columbia, Canada
    The following question was received via email:

    Many of the major leaves on my humulus lupulus 'Aureus' are turning brown, leaving mostly small leaves on shoots emanating from the leaf axil. It is planted in an amended hole surrounded by heavy soil, and in sun most of the day. It has been planted for just over a year.

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  2. Douglas Justice

    Douglas Justice Well-Known Member UBC Botanical Garden Forums Administrator Forums Moderator VCBF Cherry Scout Maple Society 10 Years

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    Vancouver, Canada
    Humulus lupulus (hops) is a vigorous climber that requires constant, even moisture and moderately rich soil to perform well. The golden hops is less vigorous and less sun tolerant, but should be fine under good conditions.

    In hot weather, young growth can burn easily, and because stems are brittle, even a perching bird can damage new growth. Wire mesh can also heat up and probably has an effect on the stems and leaves that contact it.

    Soils that are heavy (fine textured) hold considerably more moisture than coarser soils. Sometimes, roots have difficulty growing from coarse soil into fine, particularly if the transition is abrupt., or if there are circling roots (was the plant pot-bound?) Problems often arise when organic (bark-based) potting composts are transplanted into clay soils, for example.

    The pattern of dieback you describe sounds like it could be from a root problem (dieback due to air pockets or circling roots), but this will probably disappear as the roots move out into the surrounding soil.
  3. Susan Evans

    Susan Evans Member

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    Saltspring Island
    Golden hops

    Thank you for your reply. I'll take special care next summer with watering.

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