shrubN. America Native

Mountain Bush-honeysuckle

The Story

Plant Bio

Diervilla rivularis, commonly called mountain bush-honeysuckle, is a compact, deciduous, mounding shrub native to bluffs, cliffs, and stream banks in the southern Appalachian Mountains. It reaches three to six feet in height, spreading slowly by underground rhizomes to form multi-stemmed colonies.

The oval leaves and young branchlets are densely covered in fine hairs, distinguishing this species within the genus. Small, pale yellow, two-lipped flowers open in crowded terminal clusters throughout summer, attracting native bees and hummingbirds.

Uses & Benefits:

Forms dense, fine-textured mounds with lemon-yellow summer flowers and attractive foliage.

Spreads via underground rhizomes to stabilize soil on slopes and rocky banks.

Provides floral nectar for native bees, butterflies, and hummingbirds.

Essentials

At a Glance

Plant Type

Shrub

Height

71"

Width

94"

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8

Water

Medium

Humidity

High

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

Bloom period

Summer

In flower about 3 months of the year

Planting

How to Grow

Select a site in full sun to partial shade with well-drained soil.
Dig a hole twice as wide as the root ball and set the crown level with the surrounding soil.
Backfill with native soil and water deeply to settle air pockets.
Apply a two-inch layer of organic mulch around the base, keeping it clear of main stems.
Water regularly during the first growing season until root establishment is complete.

Pro Tip

Prune sparingly after flowering in late summer; severe, indiscriminate hedging into old leafless wood destroys the natural mounding habit and delays future bloom production.

Keep It Thriving

Care Guide

Do

Provide dappled shade in hot, low-latitude summer climates to prevent foliage scorching on dark or pale foliage forms.
Allow the plant space to spread naturally via underground rhizomes into mass plantings or thickets.
Remove dead or winter-damaged branches in early spring before fresh leaf growth emerges.

Don't

Do not shear the shrub into tight geometric hedges.
Do not plant in soggy, poorly drained soil conditions where standing water persists.
Do not over-fertilize, as excess nitrogen weakens stem structure.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Propagate
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Native plant gardensErosion control on slopes and banksPollinator gardensMass plantings and naturalized borders

Companion Plants

Heuchera americana Carex pensylvanica Polystichum acrostichoides Hydrangea arborescens

Multiply

Propagation Methods

Good to Know

Common Questions

Mountain Bush-honeysuckle questions

What zones can Mountain Bush-honeysuckle grow in?

Mountain Bush-honeysuckle is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Mountain Bush-honeysuckle deer resistant?

Yes — Mountain Bush-honeysuckle is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Mountain Bush-honeysuckle bloom?

Mountain Bush-honeysuckle typically blooms in summer through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Mountain Bush-honeysuckle need full sun?

Mountain Bush-honeysuckle does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Mountain Bush-honeysuckle drought tolerant?

Yes — once established (usually after the first full season), Mountain Bush-honeysuckle handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.