Search results for "spurge laurel"

Japanese knotweed plants turn yellow in September. Time to act!

What’s Up With Weeds: September

…herbaceous perennial that emerges in May and June. Flowers begin to appear in July. Scotch thistle (Onopordum acanthium) is a herbaceous biennial that overwinters as rosettes. Flower stalks emerge in June and flowering […]

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Tansy Ragwort is manageable

What’s Up With Weeds: August

…herbaceous biennial that overwinters as rosettes. Flower stalks emerge in June and flowering is in July and August. Spurge laurel (Daphne laureola) is an annual shrub that emerges in March and flowers in […]

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Clackamas SWCD