Scientific Name:
Epimedium
x
youngianum
Pronunciation:
ep-ih-MEE-dee-um ex yung-ee-AY-num
Common Name:
barrenwort
Family Name:
Berberidaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Leaves basal, biternate, leaflets pinnately compound, pinnae ovate-deltoid, most 5-7cm long x 2-4cm wide, base cordate, red tinged in spring, and deep red in fall, margin spinose; raceme, flowers with 4 white to pink petals, some cvs. short-spurred.
Habit:
Spreading
Form:
Mounded
Texture:
Medium - fine
Mature Height:
0.1 - 0.2m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Moderate
Origin:
Garden origin (E. diphyllum x E. grandiflorum)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Part sun/part shade, Filtered shade, Deep shade
Soil/Growing Medium:
Humus rich, Rocky or gravelly or dry, Well-drained
Water Use:
Moderate
Landscape Uses:
Ground cover, Rock garden, Woodland margin
Additional Info:
Leaf Morphology:
Form:
Compound
Arrangement:
Basal
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Compound Leaf:
Biternate, Leaflets stalked
Colour in Summer:
Green, New foliage red
Colour in Fall:
Red
Shapes:
Ovate
Apices:
Acuminate
Margins:
Serrate
Inflorescence Type:
Raceme
Flower Morphology:
Flowers perfect
Number Of Petals:
4
Corolla Shape:
Cruciform
Ovary Position:
Superior
Colour (petals):
Showy, White (cv. Roseum has dusky pink to purple flowers)
Flower Time at Peak:
Apr, May
Fruit Type:
Aborted (hybrids) or absent
Fruit Colour:
Fruiting Time:
Additional Info:
Not showy
Bark or Stem Colour:
n/a
Organ Modifications:
Rhizomes
Propagation:
Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant, Deer resistant, Rabbit resistant, Drought tolerant)
