Ramps Plant Profile

Close-up image of the beautiful Wild Onion, white spring flowers in soft sunshine
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In This Article

Ramps (Allium tricoccum), commonly called wild leaks, were once limited to growing in the wild, but this springtime vegetable is now being grown in more and more vegetable gardens. They have a flavor that blends spring onions and garlic. Ramps are delicious eaten on their own, or they can be used to flavor other dishes. The leaves, stems, and bulbs can be blanched, fried, or chopped and mixed into dishes from pancakes to meatloaf.

Ramps are a native plant found growing in moist woodlands of the Appalachian mountain range in eastern North America. They begin growth from a small bulb and spread and colonize over time. The leaves emerge in early spring, but the plants are ephemeral, disappearing within a month or two and remaining dormant until the following spring. Their leaves have an elongated oval shape that tapers to a point. They resemble lily of the valley leaves, although a bit slimmer.

Wild leeks have a flower stalk that tends to emerge as the leaves are fading. The flowers are a pinkish-white, and the seed is dispersed close to the mother plant. These perennials are very slow to reach maturity for harvest. Plants started from seed may not be harvestable for seven years, while those started from bulbs or young plants may be ready to harvest in two to three years. Plants, bulbs, and seeds typically are started in spring but can be planted in fall.

Botanical Name Allium tricoccum
Common Name Ramps, wild leeks
Plant Type Bulb-forming perennial
Mature Size 6 to 8 inches tall (leaves only)
Flower Color Pink
Sun Exposure Shade to partial shade
Soil Type Loamy
Soil pH Neutral (6.8 to 7.2)
Bloom Time Spring
Hardiness Zones 4 to 7
Native Area North America
Allium tricoccum - Wild leeks
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The Dirty Bunch
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How to Plant Ramps

In the wild, ramps take advantage of the increased daylight and rising temperatures of early spring, when the deciduous trees above have not yet leafed out. As the season progresses and the tree canopies fill in, the ramps fade under the sparse light that reaches the forest floor.

When growing ramps in a home garden, the primary goals are harvesting the aromatic leaves in spring and establishing the colony for future growth. The leaves start to die back in early summer and are followed by the flower stalks, while the bulbs grow underground.

When starting with transplants or bulbs, be very careful not to damage the roots or bulbs. Plant at the same depth they were in the pot, and space the plants about 4 to 6 inches apart, to allow them to spread. Water the plants well, and mulch the whole bed with something like shredded leaves or leaf mold.

Ramp Care

Light

Ramps are spring woodland plants so they need protection from the extreme sun and heat of summer. If you can't plant them on the edge of a woodland, where they will be sheltered as the trees leaf out, at least give them a spot in shade to partial shade.

Soil

To grow ramps in your yard, try to pick a site as close to their native growing conditions as possible. They are usually found in moist areas, under deciduous trees. The soil should have a good amount of organic matter in it and be well-draining. The soil pH should be close to neutral, ideally between 6.8 and 7.2.

Water

Although ramps like regular moisture, they do not grow well in wet soils. If other woodland flowers such as bloodroot, trillium, and trout lily will grow in the area, ramps should do fine. They grow actively only for a short period in the spring, so there is little room for error.

Temperature and Humidity

The ideal temperature for ramps is 54 degrees Fahrenheit during the day, dropping down to 46 degree Fahrenheit at night, but it commonly grows in temperatures ranging from 45 to 65 degrees Fahrenheit in the day and 42 to 58 degrees Fahrenheit at night. As native plants of northeastern U.S. hardwood forests, ramps grow in humidity levels ranging from about 5 percent in very late winter to above 60 percent at the end of May.

Fertilizer

Ramps may need no feeding if the soil is rich in organic matter and has a neutral pH. They prefer soil with relatively high levels of calcium and magnesium; if your soil conditions are poor, consider feeding with these nutrients first.

Harvesting

Although you can harvest your ramps at any time, harvesting before the patch has had a chance to enlarge will very quickly deplete the patch. It's best to give the patch a few years to spread out, then harvest by thinning out the largest plants, digging the whole clump, bulb and all. Be careful not to damage neighboring plants.

How to Grow Ramps From Seed

Growing ramps from seed can take a long time. The seed embryo is not fully developed in fresh seed and may remain dormant. To complicate matters further, it needs to be warm and moist to break root dormancy, then it must be cold to break shoot dormancy. Depending on the weather of any particular year, it can take a couple of years for the seed to finally germinate.

The best time to sow ramp seeds is in late summer to early fall. Scratch and loosen the top layer of soil and press the seed into it. Cover with about an inch of shredded, damp leaves and be patient.