Cereus hildmannianus (Hedge Cactus, Queen of the Night)


Botanical Information

FamilyCactaceae
GenusCereus
Specieshildmannianus
CategoryTropicals
OriginSoutheast South America.

Details

USDA Hardiness Zone9 - 11
USDA Hardiness Ref.
Canadian Hardiness ZoneRequires cool season protection under glass.
Canada Hardiness Ref.
RHS Hardiness ZoneH3 - H1b
RHS Hardiness Ref.
Temperature (°F)10
Height0.6 - 1 m
Spread0.3 - 0.6 m
GrowthSlow
Flowering PeriodJanuary

Description and Growing Information

ShapeUpright.
LandscapeRock gardens, outdoor potted patio plant, indoor potted plant or as a specimen.
PropagationFrom softwood stem cuttings, allow cut surface to callous over before planting directly into soil.
CultivationGrow in well-draining, loose gravelly, sandy or loamy soils in full sun to partial shade. Repot annually to encourage healthy growth.
PestsRoot rot in damp, poorly drained soils.
Notable SpecimensDesert Botanical Gardens, Phoenix, Arizona, United States of America. Centennial Conservatory, Thunder Bay, Ontario, Canada.
HabitatDry rocky plains.
Bark/Stem DescriptionSolitary succulent bark, 7 - 10 veins with spines growing lengthwise, occasionally with offset shoots.
Flower DescriptionShowy 5 - 8-petaled blooms that grow along the midsection of solitary stems.
Colour DescriptionDeep green succulent flesh. Pale cream white flowers with ovate-pinnate petals that fade to a deep brownish-purple near the stamen.
Texture DescriptionSmooth, thorny.

Photographs