Oregon Grape

Shrub

Oregon Grape

Berberis aquifolium

Also known as: Tall Oregon grape, Mahonia aquifolium (synonym in older literature)

Shrub Berberidaceae EdibleMedicinalWildlife AttractorBorder PlantPest Management
Hardiness Zone
5-9
Ideal Temp
35–78°F
Survives Down To
-10°F
Life Cycle
Perennial

Oregon grape (Berberis aquifolium) is an evergreen, holly-ish shrub with compound, spiny leaflets, bright yellow early-spring flowers, and dusty-blue berries with a tart pucker that educates children about honesty. Plants range from low mounding forms to 6-foot thickets depending on cultivar and site; they prefer woodland edges with organic mulch, not parking-lot heat islands. subtropical and tropical Americas: Treat as a northern ornamental experiment in shade and acidic, well-drained soil; humid lowland heat can bring foliar drama—airflow and avoiding shearing wet foliage reduces fungal gossip. ☀️💧 Sun and Water Requirements: - Part shade to full shade in hot climates; cool regions tolerate more sun if roots stay cool and moist. - Medium moisture; drought-tolerant once established but not a desert mascot; improve organic matter. ✂️ Propagation: - Semi-hardwood cuttings in late summer under humidity; bottom heat speeds rooting if your house is emotionally cold. - Seed requires cleaning and stratification for many lots; expect variability—berberis genetics enjoy surprises. 🌾 Harvest / Best Use Timing: - Berries when fully blue with a bloom, after flavor shifts from insult to usable tart; process into jelly or ferment if your palate is brave. - Bark and root harvesting for traditional use stresses plants—rotate patches, never strip a single individual like a corporate raider.

Good Neighbors
  • Evergreen Huckleberry — shared acidic, woodland-edge culture; staggered fruiting extends wildlife grocery hours.
  • Rhododendron — complementary bloom timing and mulch needs; both sulk in high-pH water—test, don’t guess.
  • Maidenhair Fern — ground-layer humidity lift beneath shrub skirts; roots occupy different horizons with minimal trench drama.
Known Threats — Organic Solutions Only
Powdery Mildew
Erysiphales
Scale Insects
Coccoidea