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Bogbean

Menyanthes trifoliata

Also listed as Menyanthes americana, Menyanthes latifolia

Also known as Buckbean, Marsh Trefoil, Bog Buckbean

herbaceousβ›… part shadeπŸ’§πŸ’§πŸ’§ high water❄ Hardy: Zone 3b – Zone 7b

Climate Match for your location

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A wetland perennial with distinctive three-lobed leaves and delicate white or pink flowers in spring. Best grown in consistently wet conditions such as bog gardens or pond margins.

Why grow it

Bogbean establishes readily in permanently waterlogged sites where many ornamental perennials struggle, making it useful for stabilizing wet margins and shallow pond edges. Its spring flowers and distinctive trifoliate foliage provide visual interest in a season when bog plantings can appear sparse. Unlike some shallow-water alternatives, it tolerates both acidic and neutral soils common to peat-based wetlands.

Watch out for

The plant spreads moderately through rhizomes and may need periodic division to prevent overcrowding in smaller bog gardens. In very sheltered or stagnant water conditions, the rhizomes can rot if oxygen levels drop significantly; moving water or periodic draining helps prevent this.

Overview

Form
Spreading
Growth Rate
moderate
Size
0.5–0.8β€² tall Γ— 1–3β€² wide
Dormancy
deciduous
Family
Menyanthaceae
MedicinalEdible

Native to the United States

Native Range

Northern Hemisphere temperate regions

Native to: Alaska, Arizona, California, Colorado, Connecticut, Delaware, Iowa, Idaho, Indiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oregon, Pennsylvania, Rhode Island, South Dakota, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Harvest Season

J
F
M
A
M
J
J
A
S
O
N
D

Edible Parts

leaf

Season of Interest

SpringSummer

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Companion Planting

Plants well with