Lonicera involucrata (Twinberry Honeysuckle)
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Lonicera involucrata (Twinberry Honeysuckle)

Twinberry Honeysuckle, Black Twinberry Honeysuckle, Black Twinberry, Bearberry Honeysuckle, Four-line Honeysuckle, Californian Honeysuckle


Attractive and pleasing to the eye, Lonicera involucrata (Twinberry Honeysuckle) is a long-lived deciduous shrub with sturdy shoots covered with opposite, bright green, elliptical leaves, 5 in. long (12 cm). In early spring to late summer, depending on locations, small, dainty yellow flowers, 1 in. long (2.5 cm), appear in dangling pairs surrounded by two leafy bracts. The bracts turn from green to a brilliant dark red in late summer as fruits ripen. The flowers give way to pairs of small plump purple or black berries that are unpleasantly bitter tasting. Great for wildlife, the flowers are a source of nectar for hummingbirds and butterflies. The berries are eaten by bears, small mammals, game birds including quail and grouse, and songbirds. Native to northern and western North America, Twinberry Honeysuckle grows in moist forest openings, swamps, streamsides, and meadow edges, ranging in elevation from sea level along the Pacific Coast to subalpine sites in the mountains. Twinberry Honeysuckle is a valuable shrub for streambank erosion control and restoration of riparian areas, swamps, bogs, moist woodlands, scrub-shrub wetlands, and sandy coastal areas within its native range. Like many honeysuckles, Twinberry Honeysuckle is also an attractive garden ornamental. Its flowers are most welcomed in summer when many other plants have finished blooming.

  • Grows up to 6-15 ft. tall (180-450 cm) and 6-10 ft. wide (180-300 cm).
  • A full sun to part shade lover, this plant is best grown in moist, organically rich, well-drained soils. While tolerant of full sun, Twinberry Honeysuckle is most commonly found under shady conditions in its native habitats.
  • Excellent choice for beds and borders, hedges and screens, erosion control.
  • Low maintenance, this plant is generally pest and disease free. Keep an eye out for aphids, serpentine leaf miners, and scales.
  • Propagate from seed or cuttings.
  • The bitter ripe berries may be mildly toxic or poisonous to humans.
  • Lonicera involucrata is found from southern Alaska east across boreal Canada to Quebec, and south through the western United States to California, and to Chihuahua in northwestern Mexico.

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Requirements

Hardiness 4 – 10
Plant Type Shrubs
Plant Family Lonicera - Honeysuckles
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 6' – 15' (180cm – 4.5m)
Spread 6' – 10' (180cm – 3m)
Spacing 72" – 120" (180cm – 300cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Fruit & Berries
Native Plants United States, Alaska, California, Midwest, Michigan, Wisconsin, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southwest, Nevada, Arizona, New Mexico
Tolerance Deer
Attracts Birds, Butterflies, Hummingbirds
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles Informal and Cottage, Prairie and Meadow

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Guides with Lonicera - Honeysuckles


Peter Turner Photography, Stefan Schug, Shutterstock, NatureShutterbug, Sfbaywalk, Alan Schmierer, Flickr

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 10
Plant Type Shrubs
Plant Family Lonicera - Honeysuckles
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 6' – 15' (180cm – 4.5m)
Spread 6' – 10' (180cm – 3m)
Spacing 72" – 120" (180cm – 300cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Fruit & Berries
Native Plants United States, Alaska, California, Midwest, Michigan, Wisconsin, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southwest, Nevada, Arizona, New Mexico
Tolerance Deer
Attracts Birds, Butterflies, Hummingbirds
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles Informal and Cottage, Prairie and Meadow

Guides with Lonicera - Honeysuckles

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