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Diervilla lonicera

Bush-honeysuckle

Plant Details

Common Name: Bush-honeysuckle
Family: Caprifoliaceae (honeysuckle family)
Mature Height: 2 - 5'
Sun Requirement: Sun, Sun to part shade
Moisture Requirement: Dry, Dry - medium, Medium - moist, Moist
Flower Color: Yellow
Bloom Time: Early summer (June - July), Mid summer (July - August), Late summer (August - September)
Seed Collection Date: Mid summer (July - August), Late summer (August - September)

Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle
Diervilla lonicera Bush honeysuckle

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Etymology

Diervilla is named after the French surgeon Diereville, who observed the plant with great interest when visiting Canada between 1699-1700. He introduced the plant to Europe upon returning to France; lonicera is from New Latin, after German botanist Adam Lonicerus (Lonitzer).

Native Habitat

Edge habitats and anthropogenic sites (roadsides, clear-cuts, ditches). Native from Newfoundland to Saskatchewan, south to Virginia into the Appalachians.

Garden Uses

With its extended flowering period, bush honeysuckle is an excellent shrub for any garden. Its modest height makes it a great partner for perennials in a conventional border. It is an essential addition to hedgerow plantings, particularly for its ability to blossom when other native shrubs and trees are busy producing fruit. These plants are easy to grow and thrive in average, well-drained soils with dry to medium moisture and in full sun or partial shade. They are quite drought tolerant and tend to freely produce suckers, making them ideal for erosion control or planting in difficult sites like driveway edges. Bush-honeysuckle responds well to thinning of older stems. Notably, it can handle both snowplow damage and snow loads with ease.

Overview

Bush honeysuckle is a small to medium-sized deciduous shrub with shiny green and copper foliage, and delicate, small yellow flowers that are produced all summer and provide an ongoing source of nectar for pollinators. An adaptable plant of edge habitats and disturbed sites, it thrives in a range of soil and light conditions, from dry to seasonally flooded and from sun to shade.

Leaves and Stems

The foliage of bush honeysuckle stands out with its distinctive shades of coppery green and bronze, while the new growth of stems is a brilliant crimson color. These colors persist as the plant produces new leaves and branching stems in abundance throughout the summer and early fall. The branches arch elegantly as they grow longer. In autumn the shrub’s leaves extinguish themselves in a final blaze of yellow, orange, burgundy or scarlet.

Flowers

Small greenish-yellow buds appear in early June and open later in the month. Flowers grow in pairs and trios in lower leaf axils, while the branch tips feature a long-blooming terminal cyme. After pollination, the flowers gradually change color from a deeper yellow to salmon, peach and red, contributing to the shrub's vibrant palette.

Fruit/Seed

The seed is small and dark-colored with a slight grayish bloom when ripe.

Animal Associates

Bush honeysuckle flowers benefit butterflies and moths and long-tongued insects that can probe for nectar. In addition to native bumblebees (Bombus affinis, B. terricola, B. vagans),  Sphingidae (sphinx moths) sip from bush honeysuckle’s flowers using their long straw-like mouth parts. Smaller short-tongued insects include the Anthophoridae (digger bees), the Megachilidae (leafcutter bees) and the Halictidae (sweat bees, Lasioglossum species). Thickets of bush honeysuckle provide durable cover for ground-nesting birds. Deer are known to browse on bushhoneysuckle, though this often leads to the plant branching out and producing vibrant new growth.

Propagation

This plant spreads readily from stoloniferous roots (horizontal, above-ground stems with roots and shoots forming at the nodes and tip) forming clonal stands. Plants are easy to grow from seed, gathered in fall when the seed capsules dry and turn dark brown. The seed is small, dark-colored with a slight grayish bloom when ripe. Seeds can be sown immediately outdoors, lightly covering the seed with sand or stored dry in the refrigerator and sown in spring.

Garden Location

Entry Garden, Library Garden, Residential Garden (see garden map)

Anecdotal Information

Cultivars are becoming commonplace at the nursery. Obtain straight species plants for optimum ecological benefit.

Sources

Missouri Botanical Garden

Wild Seed Project

Plant Profile by Rachel Emus