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Mountain Tarweed

Madia glomerata
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Madia glomerata (Mountain Tarweed) — botanical photograph
Pl. 3D0E — Madia glomerata
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I

Overview

Mountain Tarweed (Madia glomerata) is an annual forb or herb native to a wide range of North American regions, including Alaska, Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Iowa, Maine, Manitoba, Michigan, Minnesota, Montana, Nevada, New Mexico, North Dakota, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wyoming, and Yukon. This plant thrives in moist environments with light to medium soil types, including sandy, loamy, and clay soils, and requires full sun exposure. Known for its edible seeds, Mountain Tarweed is harvested when ripe and can be used raw or ground into flour for baking. It grows up to 0.8 meters tall and is a distinctive plant in its native range due to its adaptability and presence in diverse habitats. Native to regions such as Alaska, Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Iowa, Maine, Manitoba, Michigan, Minnesota, Montana, Nevada, New Mexico, North Dakota, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wyoming, and Yukon, Mountain Tarweed is also found in introduced regions like France and New York.

Quick answers

What is Mountain Tarweed?

Mountain Tarweed (Madia glomerata) is an annual forb or herb native to a wide range of North American regions, including Alaska, Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Iowa, Maine, Manitoba, Michigan, Minnesota, Montana, Nevada, New Mexico,

Growingconditions · propagation · uses
V

Cultivation

Mountain Tarweed thrives in full sun and prefers moist soil that is light (sandy), medium, or heavy (clay). It grows to a height of 0.8 meters as an annual forb/herb. Hardy in temperate regions, it can be found across North America from Alaska to Yukon and southward. For propagation, seeds can be sown directly in the garden once all danger of frost has passed.
Light
Full sun
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Annual
Habit
Forb/herb
Mature size
0.8 m tall
For first-time growers

How to grow Mountain Tarweed for the first time

8steps

Start with Mountain Tarweed as an easy-to-grow annual for a beginner gardener.

  1. 1

    What you'll need

    Seeds, small pots or direct planting area, garden tools.

  2. 2

    Best time to plant

    Plant in spring after the last frost, or start seeds indoors about 4 weeks before outdoor planting.

  3. 3

    Soil and container prep

    Choose a location with well-draining soil that is light (sandy), medium, or heavy. Ensure containers have drainage holes.

  4. 4

    Sowing or transplanting

    Direct sow seeds 0.5 inches deep in the garden bed or start them indoors and transplant seedlings once they are strong enough to handle.

  5. 5

    First two weeks

    Keep soil moist but not waterlogged, providing full sun exposure. Monitor for pests and diseases.

  6. 6

    Ongoing care

    Water regularly during dry spells, especially when the plant is flowering. Deadhead spent flowers to encourage more blooms.

  7. 7

    Harvest or pruning

    Prune dead leaves and stems to maintain a neat appearance and promote new growth.

  8. 8

    Common mistakes

    Overwatering, planting in heavy shade, neglecting to deadhead spent flowers.

VI

Edible & utility

Edible parts:Seed
Edible uses: The seeds of Mountain Tarweed are edible and can be harvested for consumption. Typically, they are gathered when ripe and used in various forms—raw or ground into a flour for baking. Skip the detailed preparation methods as per the given data.
Other uses:Fragrance
Contextrange · companions · related
VII

Distribution

27 native · 2 introduced
Distribution across2 continents· 27 native· 2 introduced
Europe1 region
introduced (1)France
Americas1 region
native (1)United States
Broader regions
native:Alberta, Arizona, British Columbia, California, Colorado, Connecticut, Idaho, Iowa, Maine, Manitoba, Michigan, Minnesota, Montana, Nevada, New Mexico, North Dakota, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wyoming, Yukon
introduced:New York
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Specimen gallery

1 image
Madia glomerata (Mountain Tarweed) — botanical photograph
Mountain Tarweed (Madia glomerata)
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