Northern Starburst Rhodedendron - Knowledgebase Question

Excelsior, MN
Question by t_j_haas
April 22, 2004
There is a new variety of rhodedendron called Northern Starburst that is advertised as an improvement on PJM. Can you tell me what that improvement is and how else this variety may differ?


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Answer from NGA
April 22, 2004

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Here are the descriptions of PJM and of 'Northern Starburst'. As you will read, the flowers are larger on 'Northern Starburst' and of a slightly different color; the mature size of this plant is smaller than PJM.
Description of Rhododendron 'Northern Starburst'
Seed Parent x Pollen Parent:
compact form of PJM Group (colchicine treated)
Flower Color:
Purple
Flower / Truss Description:
Flower broadly funnel-shaped, frilly edges, 2 1/2" across, heavily textured, purple, fading inside to light purple center. Dome-shaped trusses hold 4-5 flowers.
Bloom Time:
Early
Height (ft.) in 10 Yrs:
3
Cold Hardiness Temperature:
-25?F (-32?C)
Foliage Description / Plant Habit:
Leaves elliptic, slightly down-curved margins, broadly acute apex, cuneate base, 2 to 2 1/2" long, dark grayish reddish-brown in late winter, retained 1-2 years. Dense growth habit.

Hybridizer:
Briggs Nursery

Description of Rhododendron 'PJM Group'

Seed Parent x Pollen Parent:
minus var minus Carolinianum Group x dauricum Sempervirens Group
Flower Color:
Purple
Flower / Truss Description:
Flower openly funnel-shaped, wavy edges, 1 1/2" across, lilac purple to light violet. Several clones are known as well as a number of forms.
Bloom Time:
Early
Height (ft.) in 10 Yrs:
4
Cold Hardiness Temperature:
-25?F (-32?C)
Foliage Description / Plant Habit:
Leaves elliptic, flat to convex, obtuse apex, cuneate base, rust colored scaly indumentum, deep mahogany-purple November to April. Upright, dense growth habit.
Hybridizer:
Mezitt

Hope this information is helpful!

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