Diervilla lonicera (Bush Honeysuckle)

Michael's Opinion

I first encountered this plant on a canoe trip to the French River District in Ontario where in mid-October its foliage was an very intense ruby red. I was later to discover that this plant was available commercially and thus I was able to use it in the A. M. Cuddy Gardens. I have planted in along the edge of the driveway in mass, there it receives little moisture and the baking summer sun; yet it thrives. The bonus are its delicate yellow blooms in spring that resemble those of the true Lonicera species. Periodic pruning to regenerate every five years help to keep it looking fresh. This is one tough, relatively carefree plant.

Botanical Information

FamilyCaprifoliaceae
GenusDiervilla
Specieslonicera
CategoryWoody
TypeShrub (deciduous)
OriginNative to most of the near north of Canada along the Canadian shield.
Pronunciation

Details

USDA Hardiness Zone3 - 7
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 7a
Canada Hardiness Ref.
RHS Hardiness ZoneH5 - H7
RHS Hardiness Ref.
Temperature (°C)-40 -(-12)
Temperature (°F)-40 - 10
Height1.5 m
Spread2 m
GrowthFast
Flowering PeriodJune

Description and Growing Information

ShapeRounded shrub.
PropagationBy division.
CultivationGrows in moist, well-drained soil in full sunlight to partial shade. Can tolerate drought.
PestsLeaf spot and powdery mildew.
Notable SpecimensLeaf spot and powdery mildew.
HabitatFound in Ontario at points to Sudbury and north, often on rocky outcroppings and scree type areas.
Leaf DescriptionGlossy, oval, dark green leaves.
Flower DescriptionTube-like, trumpet-shaped, greenish-yellow flower

Photographs