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The leaves can be poisonous. Leaves are sclerophyllous, simple, alternate, and oblong (10 to 30 cm long, 5 to 8 cm wide). It retains its waxy, deep-green leaves for up to 8 years, but once shed are slow to decompose. It produces large, showy, white to purple flowers each June and July. [3] Bark of Rhododendron maximum
Rhododendron catawbiense, with common names Catawba rosebay, [2] Catawba rhododendron, [3] mountain rosebay, [3] purple ivy, [3] purple laurel, [3] purple rhododendron, [3] red laurel, [3] rosebay, [3] rosebay laurel, [3] is a species of Rhododendron native to the eastern United States, growing mainly in the southern Appalachian Mountains from West Virginia south to northern Alabama.
Rhododendron macrophyllum, the Pacific rhododendron, [2] California rosebay, [3] California rhododendron, coast rhododendron or big leaf rhododendron, is a large-leaved species of Rhododendron native to the Pacific Coast of North America. It is the state flower of Washington. [4]
We’re fortunate to have lots of shade tolerant shrubs native to New England, including broadleaved evergreens like great rosebay (Rhododendron maximum) and mountain laurel (Kalmia latifolia) and ...
Rhododendron is extremely toxic to horses, with some animals dying within a few hours of ingesting the plant, although most horses tend to avoid it if they have access to good forage. Rhododendron, including its stems, leaves and flowers, contains toxins that, if ingested by a cat's stomach, can cause seizures and even coma and death. [86]
Why Your Rhododendron's Leaves Are Rolling Up and Wilting (And What to Do About It) April 23, 2021 at 12:03 PM. Droopy or curled up foliage on this shrub is a sure sign your plant isn't happy ...
It is a deciduous shrub that grows to 1–2 m (3.3–6.6 ft) in height, with elliptic or elliptic-lanceolate leaves, 3–7 cm (1 + 1 ⁄ 4 – 2 + 3 ⁄ 4 in) long by 1–3.5 cm (3 ⁄ 8 – 1 + 3 ⁄ 8 in) wide. The reddish-purple flowers appear in late winter or early spring, often on the bare branches before the foliage unfurls.
Hymenanthes, with approximately 225 species, and subgenus Rhododendron, with approx. 400 species, comprise what gardeners typically describe as "Rhododendrons." Two subgenera are generally known to gardeners as "Azaleas", and include many fewer true species: Pentanthera , which comprises the deciduous azaleas, and Tsutsusi , which includes ...