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Plant Families / Oxalis


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Oxalis

Oxalis (commonly sold as shamrock plants) coordinate beautifully in mixed containers and summer window boxes. Native to South Africa and the Americas, Oxalis are low-growing annuals or perennials producing lush foliage mounds of attractive, clover-like leaves. During the day the leaves open out to receive sunlight but at night they retract and fold up like small umbrellas, adding interest to the plant. Dainty flowers add their beauty to the display. Oxalis can’t be beat for their stunning foliage and ease of care. Their considerable ornamental appeal makes them first rate plant for rock gardens, borders or containers.

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Oxalis 'Charmed Wine' (Shamrock)

Oxalis 'Charmed Wine' (Shamrock) is an eye-catching perennial, usually grown as an annual, forming a lush mound of velvety, violet-purple, shamrock-shaped leaves. From mid spring to late summer, the handsome foliage is topped by delicate, pinkish-white flowers.

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Oxalis adenophylla (Silver Shamrock)

Native to Chile and Argentina, Oxalis adelophylla (Silver Shamrock) is a bulbous perennial forming a dense clump of finely incised gray-green leaves composed of several heart-shaped leaflets. In late spring to early summer, open-faced, white flowers, 1 in. across, flushed with purple toward their petal tips and adorned with lilac veins, appear above the handsome, clover-like foliage.

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Oxalis crassipes 'Cottage Pink' (Oxalis Strawberry)

Oxalis crassipes 'Cottage Pink' (Oxalis Strawberry) is a charming perennial forming a lush mound of bright lime green, clover-like leaves. During the day the leaves open out to receive sunlight but at night they retract and fold up like small umbrellas, adding interest to the plant.

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Oxalis crassipes 'Rosea' (Oxalis Strawberry)

Oxalis crassipes 'Rosea' (Oxalis Strawberry) is a charming perennial forming a lush mound of bright green, clover-like leaves. During the day the leaves open out to receive sunlight but at night they retract and fold up like small umbrellas, adding interest to the plant.

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Oxalis depressa (Wood Sorrel)

Oxalis depressa (Wood Sorrel) is a small tuberous perennial boasting widely funnel-shaped, bright rose-pink flowers with yellow hearts over a long season. Blooming from summer to fall, they are borne atop the handsome foliage of silvery green, clove-like leaves.

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Oxalis griffithii (Wood Sorrel)

Oxalis griffithii (Wood Sorrel) is a small perennial boasting slightly nodding, five-petaled, white flowers, 1-2 in. across (2-5 cm), with pale lilac veins over a long season. Blooming intermittently throughout the year, it may bloom all year if given enough light.

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Oxalis hirta (Tropical Woodsorrel)

Oxalis hirta is a late autumn flowering tropical woodsorrel boasting glorious, vivid pink flowers adorned with a yellow throat. Blooming from fall through spring, they are borne atop upright, branched, leafy shoots clad with tight clusters of small, linear-oblong leaves.

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Oxalis oregana (Redwood Sorrel)

Oxalis oregano (Redwood Sorrel) is a creeping, rhizomatous perennial boasting rose-pink or white flowers, 1 in. across (2.5 cm), adorned with lavender veining from spring to fall. The charming blossoms are borne on slender stems over the foliage of velvety, mid-green, clove-like leaves.

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Oxalis purpurea 'Ken Aslet'

Oxalis purpurea 'Ken Aslet' is a bulbous perennial boasting funnel-shaped, bright lemon-yellow flowers in fall and winter. They are borne atop velvety, pale green, trefoil leaves covered with silvery hairs. Easy to grow and not invasive, this plant remains green in spring, and is dormant in summer.

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Oxalis tetraphylla 'Iron Cross' (Good Luck Plant)

Exceptionally rewarding, Oxalis tetraphylla 'Iron Cross' (Good Luck Plant) is a bulbous perennial forming a lush mound of rich green leaves composed of 4 heart-shaped leaflets, each with a dark purplish blotch at its base. From early summer until frost, the handsome foliage is topped by sprays of trumpet-shaped, bright pink flowers.

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Oxalis triangularis 'Fanny' (False Shamrock)

Oxalis triangularis 'Fanny' (False Shamrock) is a bulbous plant forming a lush foliage clump of trifoliate leaves that close at night and open wide to the morning light. Adorned with silver margins, each leaf has the shape of a little heart, but is triangular like butterfly wings.

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Oxalis triangularis (False Shamrock)

Sought after for its beauty, Oxalis triangularis (False Shamrock) is a bulbous plant forming a lush foliage clump of trifoliate leaves that close at night and open wide to the morning light. Each leaf has the shape of a little heart, but is triangular like butterfly wings. Depending on the variety, the foliage may be rich purple or green, sometimes with a darker triangle of color in the center.

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Oxalis triangularis subsp. papilionacea (Purple Shamrock)

Adding striking color to borders or pots, Oxalis triangularis subsp. papilionacea (Purple Shamrock) is a bulbous plant forming a lush foliage mound of deep burgundy, trifoliate leaves that close at night and open wide to the morning light. Each leaf has the shape of a little heart, but is triangular like butterfly wings.

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Oxalis versicolor (Candy Cane Sorrel)

Native to South Africa, Oxalis versicolor (Candy Cane Sorrel) is a charming bulbous perennial forming a dense mound of fresh green leaves composed of 3 narrow leaflets. Blooming from midsummer to fall, delicate white flowers, 1 in. across (2.5 cm), adorned with a crimson margin on the petal backs, appear above the handsome, clover-like foliage.

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Oxalis violacea (Violet Wood Sorrel)

Native to North America, Oxalis violacea (Violet Wood Sorrel) is a bulbous perennial boasting lavender to pinkish-purple flowers adorned with greenish throats from mid spring to early summer.

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