Plant Data Sheet
Dull Oregon Grape Mahonia
nervosa/ Berberis nervosa
Southern British Columbia to south through Washington and Oregon to central California, west of Cascade Ranges and Sierra Nevada (1)
Dry to fairly moist (2)
Low to middle elevations, below 2000 meters (1)
Common in second growth, closed canopies of Douglas Fir forests (1)
Understory dominant in montane to submontane coniferous and mixed evergreen forests in the PNW (1)
Plant strategy type/successional stage
Shade tolerant, late successional, yet, can grow in open meadows and recent clearcuts (3)
Oceanspray (Holodiscus
discolor),
May be collected as:
Seed, rhizome or stem cuttings (1) or moderate success with root cuttings (3)
Fruit ripens during July and August, collect fruit in August to September (3)
Cold stratify for six weeks at 4¡C (3)
Rhizomatous and gradually expands laterally (3). Layering has also been reported (1). Plants generally sprout from rhizomes or "creeping rootstocks" after aboveground portions of the plant are destroyed (1). Vegetative regeneration appears to be the dominant mode of regeneration after fire or other disturbances (3).
Sow immediately or medium storage time (4)
Seeds should be dried and stored in sealed containers slightly above freezing (4)
Propagated by taking heeled, nodal and basal cuttings (3) and by seed and grafting (4)
Put cuttings in a 2:1 vermiculite:sand mixture in a cold frame (3)
Container plants grown from seed or cuttings, outplant after two years (3)
Can grow 12 in (30cm) or more in a year (5)
1)
2) Pojar, J. and MacKinnon, A.
1994. Plants of the
3) Rose,
R.; Chachulski, C. and Haase,
D. 1998.
Propagation of
4) Young,
J. 1992.
Seeds of Woody Plants in
5) Toogood, A.
1999. Plant Propagation. American Horticultural Society. D.K. Pulblishing Inc.,
Data compiled by: Lizbeth Seebacher,