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Labrador tea (Rhododendron groenlandicum)

shrub  forest  wetland/bog  
Also known as: Ledum groenlandicum
Bloom time: June - July

General

  • This erect evergreen shrub, up to 1 m tall, often forms colonies.

    Leaves & Twigs

  • The leathery, narrow, oblong leaves are about 2-5 cm long, with rusty matted hairs on the underside (new leaves have white hairs underneath). The edges of the leaves roll under to help retain moisture.
  • New twigs are densely covered with brown hairs; old stems become reddish-brown to grey.

    Flowers & Fruits

  • Five-petalled, white flowers, about 1 cm across, occur in rounded clusters at the branch tips.

    Habitat

  • Shade-intolerant and often found on moist to wet soils, Labrador tea is common on open peatland dominated by sphagnum moss and in open-canopy coniferous forests.

    PlantWatch Pointers

  • Select a typical patch of plants, if the plants are very abundant, mark off a l-metre-square section to observe.

    To Observe

  • First bloom: when the first flowers are open in the observed plants (3 places).
  • Mid bloom: when 50% of the flowers are open in the observed plants.
  • Rhododendron groenlandicum
    Additional photos:
    1. Ledum groenlandicum buds
      credit: Linda Kershaw
    2. Ledum groenlandicum first bloom
      credit: Rowena Hopkins
    3. Ledum groenlandicum almost mid bloom
      credit: Linda Kershaw
    4. Ledum groenlandicum past mid bloom
      credit: Harriet Irving Botanic Garden

    Distribution map
    Distribution Map

    PlantWatch Pete says ... Historically, the leaves of Labrador tea were hung in closets to repel moths, as well as ghosts.

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