Plant Details

Acorus calamus

Sweet Flag, Calamus

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Explore the size, hardiness, soil, light, edible uses and harvest period of Acorus calamus.

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General Information

Scientific name: Acorus calamus
Also known as: Sweet Flag, Calamus

Plant Properties

Layer: Aquatic
Size: Small
Height: 1.00 m
Width: 1.00 m
Growth Rate: None
Leaf: None

Growth conditions

USDA Hardiness: 4-11
Soil Moisture:
Wet
Soil:
Sand (light) Loam (medium) Clay (heavy)
pH:
Acidic Neutral Alkaline
Light:
Full sun

Usage properties

Edible part:
Leaves, Condiment, Root, Stem
Edibility:
(3)
Medicinal:
(4)
Features:
Basketry, Incense, Insecticide, Repellent

Description

The root of this plant can be prepared and eaten in various ways. It can be peeled, washed, and eaten raw as a fruit after the bitterness has been removed. When roasted, it has a nice flavor and can also serve as a flavoring. The root contains about 1% essential oil that is used as a food flavoring, along with a bitter glycoside for which caution is advised due to potential toxicity. Dried and ground, the root has a spicy flavor and can be used as a substitute for ginger, cinnamon, and nutmeg. A pinch of the powder is often added to tea for extra flavor. Young and tender flower heads are enjoyed by children for their sweetness. Young leaves can be cooked and contain 0.078% oxalic acid. They can be used to enhance flavor, similar to vanilla pods. The inner part of young stems can be eaten raw and makes a delicious addition to salads.

Harvest Data

Start Harvest: 01/09
End of Harvest: 31/10