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Rhododendron (PJM Group)

Common Name(s):
PJM Rhododendron, Rhododendron
Cultivar(s):
'Olga' - pink, 'Aglo' - pink, 'Pink Diamond', 'PJM Elite', 'PJM Regal', 'PJM Compact', 'PJM', 'Landmark' - near red
Category:
Shrubs
Comment:

Evergreen or deciduous shrub in the Ericaceae family. Exceptionally winter hardy; protect from strong winds; does not like wet feet. Rhododendrons and azaleas are acid loving plants meaning that the soil needs to be slightly acidic to optimize growing conditions. It makes a great informal hedge plant.  This is an underated plant that is a wildly available in the nusery trade and would make an excellent addition to any landscape. 

Seasons of Interest:

Foliage: Winter, purple Bloom: Spring, April

Wildlife Value: Tolerates damage by rabbits. Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli.

Insects, Diseases, and Other Plant Problems:  Rhododendrons are susceptible to insect and disease problems.  Insect problems include aphids, borers, lacebugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips and whitefly.  Diseases includ canker, crown rot, root rot, leaf spot, rust, and powdery mildew.  Full sun can scortch the leaves and the roots rot if soil does not drain well.   A healthy plant in the right place with proper maintenance should have few problems.

Height:
3-6 ft.
Foliage:
Elliptic, hairless, leathery, dark green leaves (to 2.5” long); foliage acquires purple tones in winter.
Flower:
Showy clusters of lavender, pink or rose flowers
Zones:
4-8
Habit:
Broadleaf evergreen
Site:
Acidic, humusy, organically rich, well-drained soil; part shade to full shade. Prefers a sun dappled shade.
Texture:
Coarse
Form:
Loose, upright
Width:
3-7 ft.
Tags:
hardy, shade, showy flowers, rabbits, broadleaf, dappled shade, bees, hedge, specialized bees, wildlife, showy, winter interest, native bees, evergreen

NCCES plant id: 2805

Rhododendron (PJM Group) Flower cluster with foliage
weretable, CC BY-NC-SA - 2.0
PJM Rhododendron Weston's Pink Diamond Weston's 'Pink Diamond', garden setting
Peter Albrecht, CC BY-NC-SA - 2.0