Scientific Name:
Aruncus dioicus
Pronunciation:
uh-RUNK-us dye-oh-EYE-kuss
Common Name:
goat's beard
Family Name:
Rosaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Clump-forming rhizomatous perennial to 2m tall; leaves bi- troripinnate, 10-60cm long (upper leaves smaller and less compounded), with 20+ ovate to narrowly oblong leaflets, most leaflets 5-11cm long x 3-5cm wide, double serrate, pubescent undersides; flowers tiny, creamy-white in large terminal panicles, petioles short.
Habit:
Arching, Open
Form:
Oval - vertical
Texture:
Medium
Mature Height:
1.3 - 2.0m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Fast
Origin:
B.C. west of Cascades, Canada - eastern, Europe
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun only if soil kept moist, Part sun/part shade, Filtered shade, Deep shade
Soil/Growing Medium:
Humus rich, Well-drained
Landscape Uses:
Native planting, Perennial border, Reclamation, Spring interest, Waterside planting, Woodland margin
Additional Info:
Leaf Morphology:
Form:
Compound
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Glabrous, Pubescent
Compound Leaf:
Odd-pinnate, Bipinnate
Colour in Fall:
Yellow
Shapes:
Oblong, Ovate
Apices:
Acuminate
Bases:
Oblique (uneven), Obtuse
Margins:
Double serrate
Additional Info:
2-pinnate, fern-like; right image is of Aruncus dioicus 'Kneiffii'
Inflorescence Type:
Panicle, Floriferous
Flower Morphology:
Dioecious plant
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Showy, White (male flowers white or creamy-white; female flowers greenish-white)
Flower Scent:
Unpleasant
Flower Time at Peak:
May, Jun, Jul
Additional Info:
female flowers pendent with 3(-5) pistils; male forets with 15-stamens 15 to 30 in male flowers
Fruit Type:
Follicle
Fruit Colour:
Yellow, Brown (About 3mm long with 2-4 seeds)
Fruiting Time:
Aug, Sep
Additional Info:
Not showy
Bark Morphology:
Smooth
Bark or Stem Colour:
Green, Red
Organ Modifications:
Rhizomes
Propagation:
Seed, Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant, Rabbit resistant, Drought tolerant)
Course(s):
- HORT 2355
Location(s):
- (BCE) Boulevard (Circular) Eastend
- (JPL) Juglans PLanting
- (WLG) WoodLand Garden