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Sweet Flag

Acorus Calamus

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Overview

Sweet Flag (Acorus calamus) is a perennial marsh plant featuring sword-shaped leaves and a fragrant, spicy aroma. It typically grows 2-4 feet tall and thrives in wet soils, often along edges of ponds and streams. Ideal for water gardens, Sweet Flag's green-yellow flowers bloom in early summer. Zones 4-10 suit it best, and it prefers full to partial sun. Notable for its ease of care and rhizomatous growth.

Sun Half, ShadeWater HighZones 4–10Type Grass
Sweet Flag (Acorus Calamus) — Notable for its ease of care and rhizomatous growth; ideal for water gardens, Sweet Flag's green-yellow flowers bloom in early

Culture

Sun
Half, Shade
Water
High
USDA zones
4–10

Shape & size

Mature height
2–3 Ft.
Mature width
1–2 Ft.

Classification

Type
Grass
Family
Araceae

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Photos (80)

Sweet Flag (Acorus Calamus) — As an informative note to clients
Sweet Flag (Acorus Calamus) — or in marshy areas where it can naturalize over time.<br><br>Maintenance is minimal
Sweet Flag (Acorus Calamus) — or in marshy areas where it can naturalize over time.<br><br>Maintenance is minimal; in spring to early summer
Sweet Flag (Acorus Calamus) — Ideal for water gardens, Sweet Flag's green-yellow flowers bloom in early summer
Sweet Flag (Acorus Calamus) — its fragrance more than compensates; grass for half or shade
Sweet Flag (Acorus Calamus) — it blooms with understated; hailing from the Acoraceae family
Sweet Flag (Acorus Calamus) — all parts of the Sweet Flag are considered toxic if ingested in large quantities; provides a vertical accent with its glossy
Sweet Flag (Acorus Calamus) — It excels in wet soil or shallow water; so caution is advised if pets or small children frequent the garden area
Sweet Flag (Acorus Calamus) — preferring full sun to part shade; it excels in wet soil or shallow water
Sweet Flag (Acorus Calamus) — so caution is advised if pets or small children frequent the garden area; lending a sensory aspect to garden
Sweet Flag (Acorus Calamus) — Ideal for water gardens, Sweet Flag's green-yellow flowers bloom in early summer; spicy scent when crushed or bruised
Sweet Flag (Acorus Calamus) — As an informative note to clients; notable for its ease of care and rhizomatous growth
Sweet Flag (Acorus Calamus) — making it ideal for planting along pond edges
Sweet Flag (Acorus Calamus) — grass for half or shade
Sweet Flag (Acorus Calamus) — Acorus calamus is also valued for its reputed medicinal properties and historical use as an herbal remedy
Sweet Flag (Acorus Calamus) — reaching heights of 2 to 4 feet and widths of 2 to 3 feet
Sweet Flag (Acorus Calamus) — Zones 4-10 suit it best, and it prefers full to partial sun; acorus calamus is also valued for its reputed medicinal properties
Sweet Flag (Acorus Calamus) — Hailing from the Acoraceae family
Sweet Flag (Acorus Calamus) — Hailing from the Acoraceae family; but division every 2 to 3 years can promote vigorous growth
Sweet Flag (Acorus Calamus) — Sweet Flag (Acorus calamus) is a perennial marsh plant featuring sword-shaped leaves and a fragrant
Sweet Flag (Acorus Calamus) — it blooms with understated
Sweet Flag (Acorus Calamus) — inconspicuous spadixes - pencil-like flower spikes enveloped by a pale green sheath, image 44
Sweet Flag (Acorus Calamus) — In spring to early summer
Sweet Flag (Acorus Calamus) — provides a vertical accent with its glossy
Photographs by 9 contributors

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