Plant encyclopedia›sweet flag

sweet flag

Also known as: beewort; calamus; cinnamon sedge; flagroot; myrtle flag; myrtle grass; myrtle sedge; sea sedge; sedge grass; sweet calamus; sweet myrtle; sweet sedge; water iris

Spreading, deciduous, aquatic perennial 60-90cm in height, with strap-shaped, aromatic bright green leaves. Insignificant brown flowers to 7cm long are produced just below the tips of the leaf-like flower stems in midsummer

Scientific classification

Species: sweet flag (Acorus calamus)
Genus: Acorus
Family: Acoraceae

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Toxicity: Aquatic · Herbaceous Perennial
Plant type: 0.5-1 metres
Height: 0.5-1 metres
Spread: Deciduous
Foliage: Clump forming
Habit: Spring · Summer · Autumn
Season of interest: Full sun
Sunlight: Information to be completed
Ideal temperature

sweet flag pictures

Distribution of sweet flag

Distribution map

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Culture

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Toxicity

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Quick identification of sweet flag

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sweet flag care guide

Moderate regular watering, avoid prolonged drought or waterlogging
Watering: Full sun
Sunlight: Information to be completed
Ideal temperature

Watering

Moderate regular watering, avoid prolonged drought or waterlogging

Fertilizing

Balanced feed in spring and light repeat in growth season

Pruning

Cut back after flowering

Propagation

Propagate by rhizome division at the beginning of the growing season. Pot up and plant out only when fully established

Growing

Grow at pond margins in very moist or wet soils in full sun. Grows best in water no deeper than 22cm. Divide every few years to prevent congestion, See bog gardening, pond plants and Ornamental grasses cultivation

More growing and care information →