General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Dry Mesic
Dry
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9a
Plant Height: 3 to 6 feet (.9-1.8 m) usually: to 15 feet or more
Plant Spread: 3 to 6 feet (.9-1.8 m) usually; to 10 feet or more
Leaves: Good fall color
Unusual foliage color
Evergreen
Needled
Broadleaf
Fruit: Showy
Edible to birds
Fruiting Time: Summer
Flowers: Showy
Fragrant
Flower Color: Yellow
Bloom Size: Under 1"
Flower Time: Spring
Underground structures: Rhizome
Uses: Windbreak or Hedge
Dye production
Provides winter interest
Medicinal Herb
Will Naturalize
Edible Parts: Stem
Roots
Fruit
Eating Methods: Tea
Raw
Cooked
Fermented
Wildlife Attractant: Bees
Birds
Butterflies
Hummingbirds
Resistances: Deer Resistant
Rabbit Resistant
Tolerates dry shade
Drought tolerant
Propagation: Seeds: Self fertile
Stratify seeds: seeds require a cooling period prior to germination and are best planted in the Fall
Sow in situ
Can handle transplanting
Propagation: Other methods: Cuttings: Stem
Pollinators: Self
Various insects
Miscellaneous: Monoecious
Awards and Recognitions: RHS AGM
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Image
Common names
  • Oregon Grape
  • Tall Oregon Grape
  • Oregon Grape Holly
  • Barberry
  • Holly-Leaved Barberry
Botanical names
  • Accepted: Mahonia aquifolium
  • Synonym: Berberis aquifolium

Photo Gallery
Location: Castlegar BC
Date: May 19 2017
Location: Grandview Heights Land - Castlegar, B.C. 
Date: 2010-03-06
 1:43 pm. Oregon Grape leaves have deepened their colour through
Location: My Garden, Utah
Date: 2014-12-07
Fall color
Location: Hortus Camera Lapidea
Date: 2023-03-26
Location: Hortus Camera Lapidea
Date: 2023-03-26
Location: Salt Lake City, Utah, United States
Date: 2019-07-10
Location: Riverview, Robson, B.C. 
Date: 2007-10-05
 4:51 pm. Shiny green leaves contrast with the lime green leaves
Location: Copenhagen, Denmark, EU
Date: 2009-02-16
Location: Hortus Camera Lapidea
Date: 2023-03-26
Location: Garfield, WA
Date: 2008-08-10
Tall Oregon Grape - beautiful blue berries!
Location: South Jordan, Utah, United States
Date: 2022-08-29
Location: South Jordan, Utah, United States
Date: 2022-08-29
Location: Grandview Heights Land - Castlegar, B.C. 
Date: 2006-08-05
 7:43 am. The dusky blush on the berries is just like the finish

Date: 2014-08-12
Location: University of Utah, Salt Lake City, Utah, United States
Date: 2024-04-23
Location: Toledo Botanical Gardens, Toledo, Ohio
Date: 2012-06-27
Some of the berries are nearly spherical.  Others, like the ones
Location: Wayne, Pennsylvania
Date: 2012-04-07
flower close-up
Location: South Jordan, Utah, United States
Date: 2016-04-20
Location: Cedarhome, Washington
Date: 2010-04-07
Location: Washington
Date: 2016-03-22
Location: Hortus Camera Lapidea
Date: 2023-03-26
Location: Sherwood Oregon
Date: 2015-03-13
spring time beauty
Location: West Valley City, UT
Date: 2014-04-16
Location: Wallsend, Tyne and Wear, England UK 
Date: 4000-01-19
Mahonia aquifolium
Location: South Jordan, Utah, United States
Date: 2019-01-02
Location: Fairfax, VA | June, 2022
Date: 2022-06-03
Location: Copenhagen, Denmark, EU
Date: 2017-02-10
Location: Woodland Park Zoo
Date: 2011-04-10
  • Uploaded by psa

credit: Aelwyn
Location: Botanical Garden Barcelona (Spain)
Date: 2017-05-13
Location: South Jordan, Utah, United States
Date: 2016-04-20
Location: Exton, Pennsylvania
Date: 2020-09-13
trunk and larger branches
Location: Bea’s garden
Date: 2023-04-04
Location: Waynesboro MS
Date: 2005-03-03
Location: Waynesboro MS
Date: 2007-02-03
Location: Farmer Johns Greenhouse, Farmington Hills, MI
Date: 2011-05-09
Location: Farmer Johns Greenhouse, Farmington Hills, MI
Date: 2011-05-09
Location: Farmer Johns Greenhouse, Farmington Hills, MI
Date: 2011-05-09
Location: Farmer Johns Greenhouse, Farmington Hills, MI
Date: 2011-05-09

Date: 2014-03-30
Tall Oregon Grape (Berberis aquifolium) a.k.a. (Mahonia aquifoliu
Location: Wayne, Pennsylvania
Date: 2012-04-07
full-grown specimen at old library east side
Location: Wayne, Pennsylvania
Date: 2012-04-07
yellow flowers and spring foliage
Location: Wayne, Pennsylvania
Date: 2012-04-07
leaves and flower cluster
Location: Glen Ellyn, Illinois
Date: winter in 1980's
two plants with winter purplish color
Location: Wayne, Pennsylvania
Date: 2017-03-19
full-grown shrub in winter
Location: Botanical Garden Barcelona (Spain)
Location: Botanical Garden Barcelona (Spain)
Date: 2017-05-13
Location: Kalama, Wa.
  • Uploaded by Joy
Location: Exton, Pennsylvania
Date: 2020-09-13
biggest & tallest plant I have ever seen of this species

Date: 2016-06-08
Young tree, has filled out nicely not very tall yet.
Location: Goshen, Indiana
Date: 2012-03-23
Location: Cedarhome, Washington
Date: 2014-05-15

Photo Courtesy of Secret Garden Growers.
  • Uploaded by Joy
Location: Garfield, WA
Date: 2008-05-16
Tall Oregon Grape - beautiful yellow flowers!

Date: June
credit: Hedwig

Date: 2019-05-01
Location: Twisp
Date: 2014-09-16
Native volunteer
Location: Exton, Pennsylvania
Date: 2020-09-13
top of a tall plant with foliage
Location: Murray, Utah, United States
Date: 2018-03-28
Location: Murray, Utah, United States
Date: 2018-04-11
Location: Murray, Utah, United States
Date: 2018-04-11
This plant is tagged in:
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Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 25, 2019 10:18 AM concerning plant:
    I have known for decades that Oregon Grapeholly is in the Barberry Family. I never expected that younger botantists would become more "lumper" than I am and designate the genus as a Barberry. It develops a larger bluish fruit than any red barberry fruit and has compound leaves that makes me think it should stay as Mahonia. This species is native to the Pacific Northwest of British Columbia down into Oregon. The alternate compound leaves have 5 to 13 spiny, sessile leaflets with the whole leaf 6 to 12 inches long. When one cuts the stout, rounded stems, it oozes some yellow dye like barberry. Perfect, yellow flowers in 2 to 3 inch long and wide terminal clusters in early spring with a little fragrance. The fruit is a true berry, rounded, blue-black looking like a grape in late summer into December. It likes part-shady locations sheltered from winds in the Midwest, Mid-Atlantic, and Northeast. It likes a moist, well-drained soil that is acid up to around pH 7.0. I see it only occasionally planted in a few yards or landscapes around from the Midwest to the Atlantic. Some larger, diverse conventional nurseries sell it, and some native nurseries in the Northwest. Slow growing and sort of expensive to buy. Usually it is around 4 to 6 feet high and wide in Midwestern and Eastern US landscapes, but I found a few growing at a mall in Exton, PA that are around 15 feet high, growing in mostly shade in a very sheltered location between the parking garage and the main shopping building.
  • Posted by Mindy03 (Delta KY) on Feb 12, 2012 12:41 PM concerning plant:
    Valuable source of nectar and pollen for honey bees.
  • Posted by Bonehead (Planet Earth - Zone 8b) on Mar 22, 2014 10:42 PM concerning plant:
    Native in the Pacific NW, from southern British Columbia to northern California, east to northern Idaho and western Montana. Found in shady rocky spots, often in wet ground. Good screening plant in a shady area. Will colonize, but very prickly, so beware. Beneficial to thrushes, orioles, mockingbirds, thrashers, crows, and jays.
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Feb 21, 2012 9:01 AM concerning plant:
    Native to British Columbia south to Oregon; Pacific Northwest: zone 5 and protected sites in 4.

    A broadleaf evergreen with irregular branching and an upright to spreading habit.

    Shoots are thick and branch infrequently; the plant is stoloniferous and colonizing.

    Typically 3' to 6' tall with similar spread and is slow-growing with a coarse texture.
  • Posted by robertduval14 (Milford, New Hampshire - Zone 5b) on Apr 16, 2013 5:24 PM concerning plant:
    Oregon's state flower.
Discussion Threads about this plant
Thread Title Last Reply Replies
no nervosa by bamira Feb 2, 2015 11:11 AM 2

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