Sweet Flag Acorus Calamus Wetland Grass Seeds

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$16.49
$16.49
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Sweet Flag, Acorus calamus, is a moisture-loving grass-like plant for pond edges, wetland-style gardens, and damp soil areas. It produces upright sword-like foliage and grows well where soil stays consistently moist. This plant is suitable for outdoor water garden borders, rain gardens, and natural-style landscapes. It prefers sun to partial shade and rich soil. Use these seeds for garden planting only, with no wellness or treatment claims.
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Sweet Flag Acorus Calamus Wetland Grass Seeds

$16.49

Planting Season

Spring to monsoon

Light Requirement

Full sun to partial shade

Plant Height

60–120 cm

Indoor/Outdoor

Outdoor
Planting Information
Life Cycle Perennial
Plant Characteristics upright foliage
Plant Type Wetland grass-like plant
Flavour Profile Not applicable
Life Perennial
Germination Time 14–45 days
Fruit Size Not applicable
Soil Type Moist to wet
Soil pH 5.5–7.5
Spacing Between Plants 30–45 cm
Watering Needs High moisture
Harvest Time Not applicable
Bloom Season Spring to summer
Seeds per Pack 1250
Seed Type Wetland plant seed
Yield Potential Dense foliage growth in moist soil
GTIN 36002765791

"Sow seeds on moist growing medium.
Press gently and cover very lightly.
Keep trays warm and consistently damp.
Transplant into wet soil when established.
Avoid letting seedlings dry out."

"Keep soil wet or consistently moist.
Grow near ponds, rain gardens, or damp beds.
Provide full sun to partial shade.
Use rich soil that holds moisture well.
Remove old leaves to maintain tidy growth."

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Frequently Asked Questions

Everything you need to know before you sow.

Can sweet flag grow in shallow water?

Yes. Sweet flag is adapted to wet conditions and can grow along pond margins or in shallow saturated areas.

Does sweet flag spread by rhizomes?

Yes. Its underground rhizomes allow clumps to expand gradually through suitable wet soil.

Can sweet flag grow in a water garden container?
Yes. A wide container that holds moisture can suit sweet flag when sufficient space is provided.

Does sweet flag tolerate partial shade?

Yes. It can grow in partial shade, particularly in consistently moist environments.

What does sweet flag foliage look like?

It forms upright, narrow, sword-like leaves that create a grass-like vertical texture.

Is sweet flag grown as a culinary herb?

Acorus calamus has historical herbal associations, but planting material should not be treated as a food product without expert identification and guidance.

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