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Data provenancePermapeopleTreflePFAFPOWOreviewed 17 Oct 2026methodology → read

Mountain thistle

Cirsium scopulorum
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Cirsium scopulorum (Mountain thistle) — botanical photograph
Pl. 122A — Cirsium scopulorum
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Overview

Mountain thistle (Cirsium scopulorum) is a perennial plant native to the western United States, specifically found in Colorado, New Mexico, and Utah. This thistle also thrives in regions like Albania and Austria, extending its range into Europe. Known for its edible roots and stems, it prefers full sun and moist conditions, growing well in various soil types from light sandy to heavy clay. Its hardiness ranges from zones 4-8, making it adaptable to different climates within its native range. One distinctive feature of mountain thistle is its ability to flourish in diverse environments, contributing to its ornamental value as well as its use in culinary dishes. While primarily valued for its edible parts, mountain thistle also has ornamental appeal and can be cultivated for its oil production. However, caution should be exercised when handling the plant, as thistles can have prickly characteristics.

Quick answers

What is Mountain thistle?

Mountain thistle (Cirsium scopulorum) is a perennial plant native to the western United States, specifically found in Colorado, New Mexico, and Utah. This thistle also thrives in regions like Albania and Austria, extending its range into Europe.

Growingconditions · propagation · uses
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Cultivation

Mountain thistle (Cirsium scopulorum) thrives in full sun and prefers moist, well-drained soil that can be light (sandy), medium, or heavy (clay). It is hardy in zones 4-8 and can grow up to 0.6 meters tall. For cultivation, ensure the soil is fertile and the plant receives adequate moisture. Propagate via seed or division. The edible parts include the root and stem, making it a versatile addition to your garden.
Light
Full sun
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
4-8
Life cycle
Perennial
Mature size
0.6 m tall
For first-time growers

How to grow Mountain thistle for the first time

8steps

Start with Mountain thistle as a simple, low-maintenance perennial for your garden.

  1. 1

    What you'll need

    A small shovel or trowel, seeds or young plants.

  2. 2

    Best time to plant

    Plant in spring after the last frost or fall before the first freeze.

  3. 3

    Soil and container prep

    Ensure soil is well-draining with a mix of light (sandy), medium, or heavy clay. Containers should be at least 30 cm deep.

  4. 4

    Sowing or transplanting

    Direct sow seeds in the ground or start young plants indoors and transplant them later.

  5. 5

    First two weeks

    Water regularly to keep soil moist but not waterlogged. Monitor for pests and diseases.

  6. 6

    Ongoing care

    Provide full sun, regular watering, and occasional pruning to maintain shape.

  7. 7

    Harvest or pruning

    Prune dead leaves and stems to encourage new growth and a tidy appearance.

  8. 8

    Common mistakes

    Overwatering, planting in poorly draining soil, neglecting to prune, and not providing enough sunlight.

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Edible & utility

Edible parts:RootStem
Edible uses: Oil
Other uses:oil
Contextrange · companions · related
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Distribution

36 native · 12 introduced
Distribution across2 continents· 36 native· 12 introduced
Europe23 regions
native (22)AlbaniaAustriaBelarusBelgiumDenmarkFinlandFranceGermanyHungaryIrelandItalyNetherlandsNorwayPolandPortugalRomaniaRussiaSpainSwedenSwitzerlandUkraineUnited Kingdom
introduced (1)Portugal
Asia1 region
native (1)Kazakhstan
Broader regions
native:Altay, Baltic States, Colorado, Czechoslovakia, Føroyar, New Mexico, Utah, Yugoslavia
introduced:British Columbia, Masachusettes, Michigan, Minnesota, New Hampshire, New York, Newfoundland, Nova Scotia, Ontario, Québec, Wisconsin
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Specimen gallery

1 image
Cirsium scopulorum (Mountain thistle) — botanical photograph
Mountain thistle (Cirsium scopulorum)
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Explore further

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