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Large-leaved Avens

Geum macrophyllum

Also known as Big-leaved Avens

herbaceous⛅ part shade💧💧 moderate water❄ Hardy: Zone 3b – Zone 9b

Climate Match for your location

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A woodland perennial with large, deeply lobed basal leaves and delicate yellow flowers on tall stems. Attractive to pollinators and suitable for shaded garden settings.

Why grow it

Large-leaved avens occupies a middle ground among woodland perennials, offering reliable yellow flowers and ornamental foliage in damp, shaded sites where some competitors (like hellebores) demand better drainage. Unlike taller, more delicate woodland species, it establishes readily from seed and tolerates variable moisture without special preparation. It provides consistent pollinator value across the growing season without the vigor concerns of some native avens in managed gardens.

Watch out for

Plants can self-seed prolifically in favorable conditions, so deadheading spent flowers prevents unwanted seedlings if containment matters in your garden layout. Performance declines noticeably in heavy clay or compacted soil; amending with compost before planting improves establishment and reduces later stress.

Overview

Form
Mounding
Growth Rate
moderate
Size
1.5–2′ tall × 1.5–2.5′ wide
Dormancy
deciduous
Family
Rosaceae
Dynamic accumulatorErosion controlMedicinalEdible

Native to the United States

Native Range

Western North America

Native to: Alaska, Arizona, California, Colorado, Idaho, Maine, Michigan, Minnesota, Montana, North Dakota, New Hampshire, New Mexico, Nevada, New York, Oregon, South Dakota, Utah, Vermont, Washington, Wisconsin, 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

rootleaf

Season of Interest

SpringSummer

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Companion Planting

Plants well with