Growth: Tall Oregon Grape grows to about 6-8 feet (2-2.5m) tall and spreads by underground stems to about 5 feet (1.5m) wide. In certain weather conditions such as cold, sun and wind the leaves turn a deep red color. Tall Oregon grape grows to 1-5 m tall. The holly-like leaves make it an excellent barrier hedge. MAHONIA AQUAFOLIUM, Tall Oregon Grape 10 cu in Evergreen holly-like plant for sun or part shade. Mahonia aquifolium is also known as Berberis aquifolium. Previous Next. Native to the Pacific Northwest of the United States. In fact, the species gets its name from the name for English Holly, Ilex aquifolium. However, in commercial horticulture these plants are still known as Mahonia. Bright yellow flowers have 6 petals and are arranged in clusters. [12][13], Mahonia aquifolium is a popular subject in shady or woodland plantings. This species is referred to as Tall Oregon Grape only to distinguish it from Low Oregon Grape, Mahonia nervosa. The Tall Oregon Grape has only 5–9 leaflets. The berries grow in clusters and are similar in appearance to small grapes. Its leathery leaves resemble holly and the stems and twigs have a thickened, corky appearance. 1989. The holly-like dark glossy green leaves are evergreen and pinnately compound comprised of 5-9 leathery ruffled leaflets, with serrated margins and spiny teeth. Fragrant bright yellow flowers bloom from early to late spring. Horticulturists have consistently continued to use the genus Mahonia to refer to those species with compound leaves that give them a very different appearance from barberries. Adapted to dry, open, more rocky hatitats, the Tall Oregon grape has fewer leaflets (5-9) than its cousin, Low Oregon Grape (9-19). If your Oregon grape seems to be a suckering type, just cut off any stems where you do not want them to be growing. It is native to much of the western United States, but grows mostly east of the Cascades from Central BC southward, only reaching the coast in southern Oregon and northern California. It is often found along roadsides; in fact it is a preferred native for new plantings along major highways. Habitat: Tall Oregon Grape is usually found on somewhat dry, rocky, open sites. It can be used as an accent plant or as a screen. It is recognized for its subtly fragrant yellow flowers that bloom in April, and turn into edible blue-black berries in late summer. Diagnostic Characters: All Mahonias have compound leaves. Has somewhat prickly evergreen leaves, so site it where it won’t be brushed against frequently. Tall Oregon Grape    The Barberry Family–Berberidaceae. It may grow slowly at first as it becomes established, then will quickly grow to its mature size. [citation needed] Some authors avoid this confusion by using "Oregon grape-holly" or "Oregon holly-grape" as a vernacular name for any species of Mahonia. Some botanists argue that the genus Mahonia is not different enough from the genus Berberis to warrant its own genus. This means you won’t be able to wildcraft your Oregon grape root - so grow it in your yard for harvest! The showy clusters of bluish-black berries which follow resemble clusters of grapes and are attractive to birds. Because of this feature they are often confused with holly. The upright clusters of fragrant yellow flowers appear from March to June, emerging from the center of the plant. Look for the 'Compactum' cultivar if you want a shrub that is shorter, at 3 feet tall. Tolerates acidic soils. The juice has a lot of natural pectin and is great made into jelly or wine, by itself or in combination with other berries such as Salal. Tall Oregon Grape has 5-9 shiny leaflets per leaf. For tall Oregon grape, select a healthy branch from an abundant bush, and saw off near the ground. Tall Oregon grape has 5-7 leaflets per leaf while dull Oregon grape (it’s anything but dull) has 9-19 leaflets. Its bronzy foliage, bright yellow, lightly scented flowers and bold texture can make an attractive addition to any landscape, but because of its prickly nature it should not be planted along walkways, where people may inadvertently brush up against it. Upright evergreen shrub that grows up to 10′ tall. The leathery leaves resemble those of holly and the stems and twigs have a thickened, corky appearance. Click on a scientific name below to expand it in the PLANTS Classification Report. The leaves are generally shinier that those of Low or Creeping Oregon Grape. Distribution: Tall Oregon Grape is native along the Pacific Coast from southern British Columbia to Northern California. The essential guide for oregon grape growers, or anyone whoever wants to grow oregon grape. Aquifolium literally means leaves that have curved hooks like an eagle’s beak (aquiline is similarly derived). Creeping Oregon Grape, Mahonia repens, is chiefly an east of the Cascades species. The pale yellow flowers form in long racemes of about eight inches, and the leaves are blue-green turning dusky maroon during winter. Tall Oregon-grape was introduced to European gardens in the early 1800s. Clusters of fragrant yellow flowers followed by blue berries attractive to wildlife accompany the evergreen mahonia, commonly known as grape holly. The prickly foliage, which remains on the plant throughout the year, takes on a reddish tinge in winter. Cuttings should be taken in late fall and treated with hormone. M. aquifolium will tolerate the shaded areas but prospers better in exposed areas. Phenology:  Bloom Period:  April-May. Creeping Oregon Grape or Creeping Mahonia is another valuable landscape shrub/groundcover. This species only is about a foot tall at maturity. Found 2 sentences matching phrase "tall Oregon-grape".Found in 2 ms. It is also occasionally printed as "Oregongrape". Widely used medicinally, the edible Oregon grape berries can also be made into jams and other recipes. Mahonias easily hybridize; intermediate forms often appear. Some authors place Mahonia in the barberry genus, Berberis. The form of this plant can be either compact and dense in full sun, or more open in the shade. The inner bark of the larger stems and roots of Oregon grape yields a yellow dye; the berries give purple dye. Its berries attract birds. Mahonia is named after American Horticulturist, Bernard McMahon. The roots of all Mahonias are bright yellow and were often used for making dye, especially for baskets. New growth in the spring is usually a bronzy red. [18] The berries can also be eaten raw after the season's first frosts.[19]. Or, if you want a similar looking shrub that is more of a groundcover, choose the creeping mahonia (Mahonia repens). Among these are tall Oregon grape (Mahonia aquifolium); Cascade, low, dull, or dwarf Oregon grape (M. nervosa); and creeping Oregon grape (M. repens). Bursts into flower brilliantly in early to mid-spring, for a long period. The dark green holly-like leaves are divided into 5-9 leaflets. 1997. Plant: Tall Oregon grape (Mahonia aquifolium) Why it’s choice: The state flower of Oregon, it has just about everything going for it as a garden plant. Cold weather in the winter often causes leaves to turn purplish or bronze. The foliage provides cover for many species and browse for deer. Mahonia aquifolium is also known as Berberis aquifolium. It is the state flower of Oregon. Names: Oregon Grapes have leaflets with sharp spines along their margin. Transfer of specific and infraspecific taxa from, Indigenous peoples of the Northwest Plateau, "Berberis aquifolium, in Jepson Flora Project (eds.) Click Here to Purchase Tall Oregon Grape! aquifolium: the classical name for holly. Other common names include Oregon Grape-Holly, Holly-leaved Barberry, Holly-leaved Oregon Grape, Oregon Hollygrape and Mountain Grape. It is valued for its striking foliage and flowers, which often appear before those of other shrubs. Once planted it may need oc­casional pruning immediately after flowering to keep a neat form. Mahonia nervosa, commonly known as dwarf Oregon-grape, Cascade barberry, Cascade Oregon-grape, or dull Oregon-grape, is a flowering plant native to the northwest coast of North America from southern British Columbia south to central California, with an isolated population inland in northern Idaho. Cutting stems to the ground will encourage compact and dense growth. Photograph by J. G. Strauch, Jr. • Mahonia aquifolium • (Muh-HO-nee-uh ak-wih-FO-lee-um) • Family Berberidaceae • Hardy evergreen shrub. aquifolium, Berberis piperiana, Mahonia piperiana, Odostemon aquifolium. Dark blue, grape-like berries are about 1 cm across with a silvery bloom. Mahonia aquifolium is a native plant in the North American West from Southeast Alaska to Northern California, and eastern Alberta to central New Mexico, often occurring in the understory of Douglas fir forests (although other forest types contain the species) and in brushlands in the Cascades, Rockies, and northern Sierras. It also handles shade and moisture as well. Mahonia aquifolium (Oregon grape) is an evergreen shrub growing from 3-8 feet tall, with pinnate leaves consisting of spiny leaflets, and dense clusters of yellow flowers in early spring, followed by dark bluish-black berries. Old or disfigured stems can be pruned all the way to the ground. Yellow flowers are borne in erect terminal clusters. It also has been found growing in the Eastern United States, mostly in the Great Lakes Region. **Use of articles and photos on this site is permitted for educational purposes only. Western Maidenhair Fern, Adiantum aleuticum. More rugged in appearance, it is looks best planted with shorter plants around it. WTU Herbarium Image Collection, Plants of Washington, Burke Museum, E-Flora BC, Electronic Atlas of the Flora of British Columbia, Native Plants Network, Propagation Protocol Database, Native American Ethnobotany, University of Michigan, Dearborn. Rank Scientific Name and Common Name; Kingdom Showing page 1. Some cultivated varieties have been developed. It does hybridize easily and intermediate forms can be found. By Betsy Strauch | February/March 1999. Will spread slowly. Appropriately – Oregon grape is Oregon’s state flower. Oregon Grape is an open branching evergreen shrub with a spreading to upright habitat that typically grows 3-10’ feet tall and 2-5’ feet wide. Its range stretches across eastern Washington to the Idaho panhandle and Western Montana. Mahonia aquifolium, the Oregon grape, is a species of flowering plant in the family Berberidaceae, native to western North America. (Portland Plant List, 2016) Photo Credit 1: Tracy Cozine. Cold, drying winter winds kill exposed foliage. It is the state flower of Oregon. Today, they are sometimes used to make jelly, alone or mixed with salal. Oregon grape will be 3 to 10 feet tall and 2 to 5 feet wide. Several common species of Oregon-grape are known, and many have numerous cultivars. Generally it is a co-operative horticultural shrub especially for partly-shaded to open well-drained sites. In some areas outside its native range, M. aquifolium has been classified as an invasive exotic species that may displace native vegetation. Upright evergreen shrub that grows up to 10′ tall. Fruits ripen September-October. It is an evergreen shrub growing 1 m (3 ft) to 3 m (10 ft)[4] tall by 1.5 m (5 ft) wide, with pinnate leaves consisting of spiny leaflets, and dense clusters of yellow flowers in early spring, followed by dark bluish-black berries. Bright yellow flower clusters grow in the middle of the plant. Distribution of Tall Oregon Grape from USDA Plants Database. The flowers, borne in dense clusters in late spring, are yellow, and are followed by spherical dark dusty blue berries, which give rise to the common name "Oregon grape".[7]. It is a good as a groundcover that grows only 1 to 2 ft. (30-60cm) tall, spreading by underground rhizomes; in full sun or partial shade. Relationships: There are about seventy species of Mahonia in Asia, and Central and North America, about 13 in North America. The leaflets of Oregon Grape somewhat resemble the leaves of English Holly, Ilex aquifolium. Some consider it a variety of Tall Oregon Grape. Mahonia nervosa Cascade, Long-leaved, or Dull Oregon Grape This Oregon grape is lower growing evergreen shrub, topping out at about two feet. Mahonia aquifolium is not closely related to either the true holly (Ilex aquifolium) or the true grape (Vitis vinifera cv.). The flowers are very attractive to insect pollinators and hummingbirds. Jepson eFlora", "North Carolina Botanical Garden / Conservation / Plants to Avoid in the Southeastern United States", Plants to Avoid in the Southeastern United States Tennessee Invasive Exotic Plant List, "Synergy in a medicinal plant: antimicrobial action of berberine potentiated by 5'-methoxyhydnocarpin, a multidrug pump inhibitor", "Our State Flowers: The Floral Emblems Chosen by the Commonwealths", https://en.wikipedia.org/w/index.php?title=Mahonia_aquifolium&oldid=986921753, Plants used in traditional Native American medicine, Articles with unsourced statements from April 2018, Taxonbars with automatically added basionyms, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 November 2020, at 19:43. Tall Oregon Grape. Bright yellow flower clusters grow in the middle of the plant. Description. Adding color and splendor to the shade garden, Mahonia aquifolium (Oregon Grape Holly) is a striking evergreen shrub with multi-season interest. Bright, fragrant yellow clusters of small flowers appear from March to June. Grows to 6 feet but can get taller with ample water. Other common names include Oregon Grape-Holly, Holly-leaved Barberry, Holly-leaved Oregon Grape, Oregon Hollygrape and Mountain Grape. CLICK ON PHOTO FOR MORE INFORMATION Remove the jars from the water and let set overnight. The genus Mahonia has now been included in the genus Berberis, hence the accepted name for Oregon Grape is Berberis aquifolium. Marroquín, Jorge S., & Joseph E. Laferrière. © 2012 - CNRTL 44, avenue de la Libération BP 30687 54063 Nancy Cedex - France Tél. Perennial evergreen shrub. This species is referred to as Tall Oregon Grape only to distinguish it from Low Oregon Grape, Mahonia nervosa. Oregon Grape Holly, Oregon Grape, Hollyleaved Barberry, Tall Oregon Grape, Hollyleaf Barberry, Berberis aquifolium, Berberis aquifolium var. oregon-grape, barberry BEPI2: Berberis piperiana (Abrams) McMinn: MAPI3: Mahonia piperiana Abrams: ODAQ: Odostemon aquifolium (Pursh) Rydb. Mahonia aquifolium grows to 1–2 m (3 ft 3 in–6 ft 7 in) tall by 1.5 m (5 ft) wide, with pinnate leaves up to 30 cm (12 in) long, each leaf made up of spiny leaflets. Tall Oregon grape is usually found at elevations below 4000 ft., and occurs in sunny‐to‐shaded areas and can thrive in rocky areas as opposed to the low Oregon grape. The flowers, borne in late spring, are an attractive yellow. Propagation:  Seeds should be stratified for 90 days at 40º*F. (4ºC) or planted outside as soon as they are ripe– seeds should not be allowed to dry out. 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