swale

  1. Georgia Strait
    Thread

    (Answered: Sisyrinchium californicum) Small plant yellow flower in swale (suburban Portland OR)

    Seeking name of this small plant that seeds freely in a recently (past couple years) “bioswale” installed by city in suburban Portland OR USA...
    Thread by: Georgia Strait, Aug 10, 2022, 1 replies, in forum: Outdoor Gardening in the Pacific Northwest
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