How big does a PJM rhododendron get?

How big does a PJM rhododendron get?

3 to 6 feet high
Size and form: A hybrid evergreen rhododendron reaching 3 to 6 feet high and wide.

What does PJM rhododendron mean?

PJM Group is a series of rhododendron hybrids that resulted from crosses between R. carolinianum and R. These hybrids are compact, rounded, small-leaved, evergreen shrubs that generally grow to 3-6′ tall and are noted for having exceptional winter hardiness.

How much sun does a PJM rhododendron need?

PJM rhododendron are best grown in an acidic, moist, well-drained soil in part to full shade. Dappled shade is preferred; full sun may result in leaf scorch.

Do deer eat PJM rhododendrons?

He says spirea, ‘Golden Mop’ cypress, pieris japonica, mountain laurel, PJM rhododendron, blue star juniper, barberry and more are all deer resistant.

Can PJM Rhododendrons take full sun?

P.J.M. ‘ and ‘Nova Zembla are two of the most sun-hardy evergreen Rhododendrons. Many varieties need shade to prevent lace bug infestations since the natural enemies of lace bugs are not active in sunny areas.

Why do my Rhododendrons keep dying?

Answer: Rhododendrons and azaleas are susceptible to a fungal wilt disease called Phytophthora root rot. The Phytophthora fungus enters the roots of the plant from infested soil and clogs the water-conducting vessels of the plant. Symptoms include poor growth, rolling of leaves, and the eventual death of the plant.

Are rhododendrons OK in shade?

Choose a site with dappled shade in sheltered conditions. Avoid deep shade beneath other trees. Most rhododendrons will tolerate a more open site if sheltered from cold, drying winds. Dwarf alpine species will tolerate full sun provided the soil does not dry out.

Are rhododendrons poisonous to touch?

Rhododendron toxicity is rarely fatal to humans, and symptoms usually last no more than 24 hours. It results in short-term gastrointestinal and cardiac problems, and the severity depends on the amount of honey or nectar ingested.

Are rhododendrons toxic to deer?

The toxic principle of laurel and rhododendron, therefore, is poisonous to deer, though they seem not to eat, of their free will, enough of either of these plants to exceed their tolerance for them.

What kind of Shade does a PJM Rhododendron need?

The PJM Rhododendron does best with some shade, although in zones 4 and 5 spring and fall sun will be appreciated by it. Light dappled shade beneath deciduous trees is ideal, but it should be light, and protection from the morning sun in winter is a good defense against the leaves burning.

How did the Rhododendron PJM get its name?

They first bloomed in the spring of 1945 and on the spot, the son named them for his father. The nursery sold these seedlings under the name “PJM,” even though there was slight variation in color and plant form. Some plants labeled under that name have a more pinkish hue while others have a more purplish cast.

What are the different types of rhododendrons?

Actually a group of hybrids resulting from crosses between R. carolinianum and R. dauricum var. sempervirens, so expect some differences in flower and leaf color. In Greer’s Guidebook to Available Rhododendrons (1996, p. 180), seven PJM’s are listed. Some types are selected for their dark leaves in winter.

What kind of Rhododendron grows at Oregon State?

In Greer’s Guidebook to Available Rhododendrons (1996, p. 180), seven PJM’s are listed. Some types are selected for their dark leaves in winter. Oregon State Univ. campus: east side of University Theaters (Withycombe).