Diervilla rivularis, the mountain bush honeysuckle, is a deciduous shrub native to the southeastern United States, known for its yellow flowers and adaptability.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
50% intensity
Prefers full sun for best flowering, but tolerates partial shade. In hotter climates, afternoon shade is beneficial.
Moderate
50% intensity
Water regularly until established. Drought-tolerant once mature, but benefits from occasional deep watering during dry spells.
Well-drained soil
50% intensity
Moderate
50% intensity
Hardy in USDA Zones 4-8. Tolerates a wide range of temperatures once established, but extreme heat or cold can impact performance.
Low
25% intensity
Generally not needed. A light application of balanced fertilizer in spring is optional if growth appears weak.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly during the first growing season to establish roots. Once established, Diervilla rivularis is quite drought-tolerant.
Water deeply when the top 5-10 cm of soil feels dry, especially during prolonged dry periods, but avoid waterlogged conditions.
Prune after flowering to shape the plant and remove any dead or crossing branches. Hard pruning can be done in late winter or early spring to rejuvenate the plant, encouraging vigorous new growth and improving flowering for the season.
Easily propagated from semi-hardwood cuttings taken in summer or from softwood cuttings in late spring. Rooting is generally successful. It can also be propagated by division of established clumps in early spring.
As a shrub typically planted in the ground, repotting is not a standard practice for Diervilla rivularis. If growing in a container, repot every 2-3 years in spring to refresh the soil and provide more space, using a well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Mountain Bush Honeysuckle (Diervilla rivularis)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Dipsacales |
| Family | Caprifoliaceae |
| Genus | Diervilla |
| Species | Diervilla rivularis |
Similar in genus Diervilla
Answers based on plant encyclopedia data
