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Allium tricoccum

An eastern North American spring-emergent, shade-loving onion-family perennial with a strong garlic-onion fragrance and edible bulbs, which forms large colonies in moist deciduous forests, is slow to establish and to mature before harvest, begins flowering after 5–7 years, and is highly vulnerable to overharvesting with conservation emphasis on one-leaf-per-plant harvesting.

Is Allium tricoccum growing in your garden? Record it and all of your plants in Known.

Common Names

Ramps, Wild Leek, Wild Leeks, Ramp, Ramson, Ramsons, Spring Onion, Wood Leek, Spring Onions, Narrowleaf Ramp, Narrowleaf Ramps

Summary

Ramps, or wild leeks, are spring ephemerals, bulb-forming perennials native to eastern North American deciduous forests, forming large patches in rich, moist hardwood forests and spreading by bulblets and seed. They feature a conical underground bulb, broad flat glossy green leaves with a garlicky onion-like aroma when crushed, and a leafless flower stalk bearing white blossoms; edible parts include the leaves and lower white stalks.

Propagation occurs by seed or division, with time to harvest ranging from about 2–7 years depending on method. Cultivation favors shady, moist woodland sites with rich organic matter, loamy, well-drained soil, and mulch with leaf litter while avoiding waterlogged conditions; sustainable leaf-only harvesting is recommended, limiting removal to roughly 5–10% of plants per plot and rotating harvest over 5–7 years to protect wild populations. Edible uses include leaves and bulbs as early spring greens and flavoring, with market interest spurring forest farming and cultivation to reduce wild pressure; pests such as Septoria leaf spot, allium leaf miner, and leek moth may occur.

Lifecycle

Perennial

Height

6-12 inches

Spread

1-2 feet

Hardiness Zones

Zones 3-7

Sunlight Requirements

Ideally partial shade.

Soil Type

Loamy, moist, well-drained soil rich in organic matter, pH 5.0–6.5

Soil Drainage

Well-drained soil

Soil pH

6.8-7.2

Bloom Color

White

Bloom Time

Summer

Foliage Color

Green

Fall Foliage Color

Green, Yellow

Leaf Lifecycle

Deciduous

Growth Rate

Slow-growing

Seasons of Interest

Spring

Propagation Methods

Seeds, Division

Attracts Wildlife

Attracts bees, butterflies, and other pollinators/insects

Taxonomy

Taxonomic Rank
Species
Author
Aiton
Publication
Hort. Kew. 1: 428 (1789)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Asparagales
Family
Amaryllidaceae
Genus
Allium

Inferior Taxa

Allium tricoccum var. burdickii Allium tricoccum var. tricoccum

Synonyms

Ophioscorodon tricoccon Validallium tricoccum Aglitheis tricocum Allium pictum

References

Ramps - Allium tricoccum | North Carolina Extensio…. plants.ces.ncsu.edu.
Cultivation of Ramps (Allium tricoccum and A. burd…. content.ces.ncsu.edu.
Ramps: An ecologically and historically important …. extension.illinois.edu.
Ramps (Allium tricoccum) - Penn State Extension. extension.psu.edu.
How to Grow Ramps | Gardener’s Path. gardenerspath.com.
Ramps, Allium tricoccum - Wisconsin Horticulture. hort.extension.wisc.edu.
Allium Tricoccum Care - PlantIn. myplantin.com.
Allium tricoccum - Species Page - NYFA: New York F…. newyork.plantatlas.usf.edu.
Allium tricoccum Aiton GRIN-Global. npgsweb.ars-grin.gov.
Allium tricoccum Wood Leek, Ramp PFAF Plant Databa…. pfaf.org.
Allium tricoccum Aiton | Plants of the World Onlin…. powo.science.kew.org.
Ramps – Allium tricoccum - United Plant Savers. unitedplantsavers.org.
Maine Natural Areas Program Rare Plant Fact Sheet …. maine.gov.
Growing Ramps, Also Known as Wild Leeks Allium tri…. melindamyers.com.
Growing Ramps from Seed - Maine Organic Farmers an…. mofga.org.
How to Grow and Care for Ramps - The Spruce. thespruce.com.
World Flora Online. worldfloraonline.org. June 2024.