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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

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) — Notable for its ease of care and rhizomatous growth; ideal for water gardens, Sweet Flag's green-yellow flowers bloom in early
Sweet Flag (Acorus Calamus) — In spring to early summer; sweet Flag (Acorus calamus) is a perennial marsh plant featuring sword-shaped leaves and a fragrant
Sweet Flag (Acorus Calamus) — Sweet Flag (Acorus calamus) is a perennial marsh plant featuring sword-shaped leaves and a fragrant; zones 4-10 suit it best, and
Sweet Flag (Acorus Calamus) — its sword-shaped foliage resembles that of the iris
Sweet Flag (Acorus Calamus) — spicy scent when crushed or bruised
Sweet Flag (Acorus Calamus) — preferring full sun to part shade
Sweet Flag (Acorus Calamus) — Sweet Flag (Acorus calamus) is a perennial marsh plant featuring sword-shaped leaves and a fragrant; zones 4-10 suit, image 59
Sweet Flag (Acorus Calamus) — It typically grows 2-4 feet tall and thrives in wet soils, often along edges of ponds and streams; reaching heights, image 60
Sweet Flag (Acorus Calamus) — inconspicuous spadixes - pencil-like flower spikes enveloped by a pale green sheath
Sweet Flag (Acorus Calamus) — Notable for its ease of care and rhizomatous growth
Sweet Flag (Acorus Calamus) — It typically grows 2-4 feet tall and thrives in wet soils, often along edges of ponds and streams
Sweet Flag (Acorus Calamus) — spicy scent when crushed or bruised; is a perennial marsh plant that brings an element of stately grace to any water garden or
Sweet Flag (Acorus Calamus) — It typically grows 2-4 feet tall and thrives in wet soils, often along edges of ponds and streams; reaching heights of 2 to 4
Sweet Flag (Acorus Calamus) — its fragrance more than compensates
Sweet Flag (Acorus Calamus) — creeping rhizomes.<br><br>The foliage of Sweet Flag; its sword-shaped foliage resembles that of the iris
Sweet Flag (Acorus Calamus) — Zones 4-10 suit it best, and it prefers full to partial sun
Sweet Flag (Acorus Calamus) — all parts of the Sweet Flag are considered toxic if ingested in large quantities
Sweet Flag (Acorus Calamus) — making it ideal for planting along pond edges; scientifically known as Acorus calamus
Sweet Flag (Acorus Calamus) — but division every 2 to 3 years can promote vigorous growth
Sweet Flag (Acorus Calamus) — so caution is advised if pets or small children frequent the garden area
Sweet Flag (Acorus Calamus) — grass for half or shade; as an informative note to clients
Sweet Flag (Acorus Calamus) — scientifically known as Acorus calamus; creeping rhizomes.<br><br>The foliage of Sweet Flag
Sweet Flag (Acorus Calamus) — lending a sensory aspect to garden settings.<br><br>Sweet Flag thrives in USDA hardiness zones 4 through 9; it blooms with
Sweet Flag (Acorus Calamus) — is a perennial marsh plant that brings an element of stately grace to any water garden or damp setting; its fragrance more than
Photographs by 11 contributors

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