Plant Data Sheet
Species Berberis nervosa, Oregon grape
Dwarf Oregon-grape occurs west of the
Oregon-grape grows at low to mid elevations in maritime to climates with fairly long growing seasons. Some sites may experience summer drought.
Local occurrence (where, how common)
Oregon grape is a common understory
Oregon-grape occurs across a wide range of habitats in sub-montane to montane forests.
Plant strategy type/successional stage (stress-tolerator, competitor, weedy/colonizer, seral, late successional)
Facultative seral species.
Mixed coniferous forest species such as salal (Gaultheria shallon), pachistima (Pachistima myrsinites), western swordfern (Polystichum munitum), Pacific
rhododendron (Rhododendron macrophyllum).
Other common names include: None found.
May be collected as:
Seeds or vegetative parts.
Collection restrictions or guidelines
Collect the fruit in August to September and clean by macerating with water to get the flesh off.
Seed germination (needs dormancy breaking?)
Seed requires cold stratification for 6 weeks.
Seed life (can be stored, short shelf-life, long shelf-life)
Recommended seed storage conditions
Dry seeds and store in sealed containers at temperatures just above freezing.
Propagation recommendations (plant seeds, vegetative parts, cuttings, etc.)
Seed and bare root.
Soil or medium requirements (inoculum necessary?)
Installation form (form, potential for successful outcomes, cost)
Recommended planting density
Care requirements after installed (water weekly, water once etc.)
Normal rate of growth or spread; lifespan
Growth rate slow, vegetative spread rate moderate.
Drake Deanne, Kern
Pojar, Jim and Andrew MacKinnon. 1994. Plants of the
Data compiled by (student name and date)