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Plant Profile: Sea Buckthorn ( Hippophae rhamnoides)

Sea Buckthorn Hippophae rhamnoidesGrown in China for twelve centuries for its medicial uses this spiny deciduous shrub may become the next health food fad but is a useful garden plant too. The outstanding feature of the plant is clusters of pale yellow to dark orange edible fruit which contains more vitamin C than oranges or lemons. The fruits ripen in the fall and persist into the winter. The inconspicuous flowers lack petals and are produced in the spring with male and female flowers on separate plants. One male plant can service several females but a male plant must be in the area for berries to be produced. The narrow leaves are gray-green on the upper side, silvery on the bottom with a rough surface. The root system is extensive making the plant valuable for soil stabilization. The roots also fix nitrogen from the air and transform insoluble chemicals in the soil into soluble forms so that they are more available to plants. Sea buckthorn tolerates salty conditions, drought, and a large variety of soil types including wet ones. It is especially useful for sea side plantings but can be used effectively in borders and the sunny locations of woodland gardens.

Type: Deciduous shrub or small tree

Outstanding Feature: Berries

Form: Upright, suckering, forming colonies

Growth Rate: Fast

Bloom: Inconspicuous apetalous male and female flowers on separate plants in spring; pale yellow to orange berries ripen in fall

Size: 20’ H x 15’ W

Light: Full sun

Soil: Average, dry to moist; tolerates infertile soil and range of pH.

Hardiness: Zones 3-7

Care: Low maintenance

Pests and Diseases: None of significance but susceptible to Verticillium wilt, Fusarium wilt, aphids, thrips, mites, earwigs, gall tick, leaf roller, gypsy mother, scale, sea buckthorn fly.

Propagation: Seed sown in fall as soon as ripe or sown in spring (cold stratification may improve germination); half ripe cuttings in summer; cuttings of mature wood in fall; division of suckers in winter; laying in fall.

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