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Quamash

Camassia quamash
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Camassia quamash (Quamash) — botanical photograph
Pl. 6E7A — Camassia quamash
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Overview

Quamash (Camassia quamash) is a flowering plant native to the western United States and Canada, found from Alberta and British Columbia in the north to California and Utah in the south. This plant, a member of the Hyacinthaceae family, thrives in moist environments with light to partial sun exposure, making it adaptable to a variety of soil types, including light (sandy), medium, and heavy (clay). Growing up to 0.3 meters tall, it is known for its edible roots, which were an important food source for indigenous peoples. The roots can be eaten raw or cooked, often boiled to make a starchy vegetable similar to potatoes, or dried for later use. The plant's distinctive feature includes attractive clusters of sky-blue to white flowers that bloom in early summer, adding ornamental value to landscapes while fulfilling its ecological role in native ecosystems. Thriving in USDA Hardiness Zones 3-7, Quamash is a versatile addition to gardens, providing both aesthetic and practical benefits.

Quick answers

What is Quamash?

Quamash (Camassia quamash) is a flowering plant native to the western United States and Canada, found from Alberta and British Columbia in the north to California and Utah in the south.

Growingconditions · propagation · uses
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Cultivation

Quamash thrives in full to partial sun and prefers moist soil that is light (sandy), medium, or heavy (clay). It is hardy in zones 3-7 and grows to a height of 0.3 meters. For best results, maintain a soil pH between 5.7 and 7.0. Propagate through root division or seed sowing. This plant is native to Alberta, British Columbia, California, Idaho, Montana, Nevada, Oregon, Utah, and Wyoming, making it well-adapted to temperate regions.
Light
Full sun, Partial sun/shade
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
3-7
Habit
Forb/herb
Mature size
0.3 m tall
Soil pH
5.7–7
For first-time growers

How to grow Quamash for the first time

8steps

Start with planting Quamash in a sunny spot and follow these simple steps for success.

  1. 1

    What you'll need

    Quamash bulbs, well-draining soil, a garden fork or trowel.

  2. 2

    Best time to plant

    Plant in fall after the first frost, around September to November.

  3. 3

    Soil and container prep

    Choose a location with light to partial sun. Amend soil with compost if needed.

  4. 4

    Sowing or transplanting

    Plant bulbs 5-10 cm deep and 15-20 cm apart in well-draining, moist soil.

  5. 5

    First two weeks

    Water regularly to keep the soil consistently moist but not waterlogged.

  6. 6

    Ongoing care

    Provide light watering during dry spells. Avoid overwatering, especially after flowering.

  7. 7

    Harvest or pruning

    After flowers fade, allow foliage to yellow and die back naturally before removing it.

  8. 8

    Common mistakes

    Planting too deep, not providing enough water, neglecting drainage, over-fertilizing, and removing foliage too early.

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Edible & utility

Edible parts:Root
Edible uses: The roots of quamash are edible and can be eaten raw or cooked. They are often boiled to make a starchy vegetable similar to potatoes. The roots can also be dried for later use. Skip the preparation details if you're just looking for basic information on consumption methods.
Contextrange · companions · related
VII

Distribution

10 native · 0 introduced
Distribution across0 continents· 10 native
Broader regions
native:Alberta, British Columbia, California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming
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Specimen gallery

1 image
Camassia quamash (Quamash) — botanical photograph
Quamash (Camassia quamash)
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