Oxalis oregana (Redwood Sorrel)


Botanical Information

FamilyOxalidaceae
GenusOxalis
Speciesoregana
CategoryPerennials
TypeShrub (evergreen)
OriginNative to Western North America.

Details

USDA Hardiness Zone7 - 9
USDA Hardiness Ref.
Canada Hardiness Ref.
RHS Hardiness ZoneH5
RHS Hardiness Ref.
Temperature (°C)-17
GrowthFast
Flowering PeriodJune, July

Description and Growing Information

General DescriptionA low-lying perennial with heart-shaped, clover-like foliage and small purple-veined flowers.
ShapeMat-forming.
LandscapeGroundcover.
PropagationBy seed, or division in spring.
CultivationGrow under partial to full shade in moist, humus-rich soil of any acidity.
PestsMay be susceptible to rust, seed smut, powdery mildew and fungal leaf spot.
Notable SpecimensRHS Garden Rosemoor, North Devon, England.
Leaf DescriptionHeart-shaped leaflets of 3.
Flower DescriptionSmall cup-shaped flowers.
Colour DescriptionShamrock-green foliage. Pale lilac-to-pink flowers. Light green stems.
Texture DescriptionThick.

Photographs