Mahonia aquifolium
Oregon Grapeholly

Mahonia aquifolium - Shrub Habit

Family:

Berberidaceae (Barberry Family) 8

Genus:

Berberis (Oregon Grapeholly Oregongrapeholly Oregon Hollygrape Grapeholly, Oregon Hollygrape, Oregon) 2

Plant Type:

Shrub 468

Growth Forms:

Spreading / Branched 95

Hardiness:

USDA Zone 5 255

Deciduous / Evergreen:

Evergreen 262

Flower Notes:

Yellow (Bright yellow flowers in 2-3" long terminal racemes in April)

Foliage Notes:

Green (Evergreen foliage is spine-toothed, lustrous or dull, dark or bluish-green in spring/summer); Red-Violet (Purplish-red-green in fall/winter)

Fruit Notes:

Blue (Glaucous blue fruits (0.3-0.5" dia.) persistent until December)

Ultimate Height:

3-6 feet

Ultimate Spread:

3-5 feet

Fruiting Times:

June 74

Light Requirements:

Soil Notes:

Widely adapted to different soils, except those with a high pH (chlorosis)

Range:

British Columbia to Oregon

Diagnostic Characteristics:

Thickish evergreen leaves (6-12" long) are opposite, pinnately compound (5-9 sessile leaflets 1.5-3.5" long), with spiny-dentate margins. Stems are grayish-brown at maturity. Leaf scars are narrow and half encircle the stem.

Purdue Plant Doctor

Parts and Problems of Oregon Grape Holly

Special Characteristics:

Flowering Characteristics 285

Fruiting Characteristics 191

Food/Edible 88

Naturalizing 114

Shade Tolerant 115

Additional Information

Widely adapted to soil type and environment, except high pH soils that will cause chlorosis. Quite susceptible to winter-burn. Do not plant in sites exposed to strong winds or afternoon sun in winter. Can get leggy with age. Fruits are edible and can be used in jellies.

Plant Photo Gallery

Mahonia aquifolium - Shrub Habit

Shrub Habit

Mahonia aquifolium - Leaf

Leaf

Mahonia aquifolium - Flower

Flower

Mahonia aquifolium - Emerging Foliage

Emerging Foliage

Mahonia aquifolium - Fruit

Fruit

Mahonia aquifolium - Bark

Bark

Mahonia aquifolium - Fall Foliage

Fall Foliage

Mahonia aquifolium - Fall Habit

Fall Habit

Mahonia aquifolium - Buds and Winter Foliage

Buds and Winter Foliage

Mahonia aquifolium - Winter Habit

Winter Habit

Mahonia aquifolium - Winter Foliage

Winter Foliage

When Mahonia aquifolium has been observed flowering or fruiting at Purdue University

Flowering

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Fruiting

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

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1 Mahonia aquifolium found

Building Map...

= Heritage plant = Memorial plant

Number	Accession ID	Location
1	2009_08670*A	KNOY

Other plants like this Mahonia aquifolium (Oregon Grapeholly)

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