Solidago canadensis (Canada Goldenrod)


Botanical Information

FamilyAsteraceae
GenusSolidago
Speciescanadensis
CategoryPerennials, Wildflowers & Weeds
OriginNorth America, naturalized to Europe.

Details

USDA Hardiness Zone3
USDA Hardiness Ref.
Canadian Hardiness Zone1
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-40 - (-35)
Temperature (°F)-40 - (-30)
Height1.5 m
Spread2 m
GrowthFast
Flowering PeriodAugust, September

Description and Growing Information

General DescriptionIt has been shown that S. canadensis is allelopathic.
ShapeRounded.
LandscapeGroundcover, shrub gardens, informal gardens, wildlife properties, borders and hedges, in city and courtyard gardens.
PropagationPropagate by division.
CultivationGrow in any moderately fertile soil in full sun or partial shade. Tolerant of a range of conditions.
PestsNone known.
Notable SpecimensJoany's Woods, West Williams, Middlesex County, Ontario, Canada.
HabitatSunny fields and forest edges.
Bark/Stem DescriptionSmooth erect stems and branches.
Leaf DescriptionLanceolate leaves measuring 10 cm long and 2 cm wide. The mid-stem leaves are the largest in size.
Flower DescriptionRay florets approximately 2 cm in diameter and 8 - 10 cm long that grow in clusters of 10 - 17.
Fruit DescriptionFruit is small and shortly pubescent.
Colour DescriptionMedium green to vivid green foliage and stems. Golden yellow florets. Small insignificant light green to medium green fruits.
Texture DescriptionMedium.

Photographs