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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Tree > Species: Rhododendron macrophyllum | Pacific Rhododendron
 

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VALUE AND USE

SPECIES: Rhododendron macrophyllum | Pacific Rhododendron
WOOD PRODUCTS VALUE : NO-ENTRY IMPORTANCE TO LIVESTOCK AND WILDLIFE : Pacific rhododendron is one of the shrubs eaten by mountain beaver in the Coast Range [31]. Common rhododendron (Rhododendron ponticum), a closely related species, is poisonous to sheep [29]. Pacific rhododendron may also be poisonous to sheep [52]. PALATABILITY : NO-ENTRY NUTRITIONAL VALUE : NO-ENTRY COVER VALUE : Pacific rhododendron may provide good thermal and hiding cover for big game animals [28]. However, thickets can be difficult for the animals to enter [28]. Presumably, Pacific rhododendron provides cover for smaller animals also. VALUE FOR REHABILITATION OF DISTURBED SITES : Pacific rhododendron offers erosion protection on steep watersheds [42]. It is propagated by cuttings, by layering, and from seed [21]. Air-dried seeds will remain viable for 30 months when stored at 20 degrees F (-7 deg C) [42]. Germination and early growth are good in shaded, moist mineral soil [5]. Detailed information on cultivation of Pacific rhododendron is available [35,38,42,47]. OTHER USES AND VALUES : Pacific rhododendron is the state flower of Washington. Kitsap Peninsula residents host an annual weeklong Rhododendron Festival during spring bloom [33]. Pacific rhododendron is not as widely cultivated as the showier Rhododendron hybrids, but it is used as an ornamental in backgrounds or native gardens and naturalized woodlands [33,35]. Native plants like Pacific rhododendron have potential value for low-water-use landscaping [60]. Both white and pink forms are commercially available [35]. Growing Pacific rhododendron in partial shade to full sun and debudding or pruning encourage compact growth and bloom [33,35]. Wild plants are legally protected from digging [7,33]. MANAGEMENT CONSIDERATIONS : Pacific rhododendron often indicates low soil nitrogen content. On sites where it is dominant, care should be taken to protect the soil from damage from heavy equipment or fire during logging [22,27]. Conifer planting can be difficult on sites that had dense Pacific rhododendron cover before treatment because of the residual roots. Removing the overstory may stimulate the growth of Pacific rhododendron and other shrubs [22]. If the soil is undisturbed during treatment, it resprouts rapidly [19]. If control is necessary, spraying the foliage in spring with triclopyr ester gives fair to good control [6,54].

Related categories for Species: Rhododendron macrophyllum | Pacific Rhododendron

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