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Oxytropis lambertii

Oxytropis lambertii
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Oxytropis lambertii (Oxytropis lambertii) — botanical photograph
Pl. 9637 — Oxytropis lambertii
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I

Overview

Oxytropis lambertii, commonly known as Lambert's milkvetch, is a perennial forb or herb native to the central and western United States and parts of Canada. Found in Arizona, British Columbia, Colorado, Iowa, Kansas, Manitoba, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Saskatchewan, South Dakota, Texas, Utah, and Wyoming, this plant thrives in full sun with a preference for dry to moist soil types, ranging from light (sandy) to medium textures. Hardy in zones 3-7, it grows up to 0.3 meters tall and is known for its edible roots and seeds, making it a valuable resource for foragers. The root can be dug and eaten raw or cooked, while the seeds should be dried before consumption; they may also be ground into a meal for use in various dishes. This plant showcases remarkable adaptability, growing in diverse habitats across its native range. It is known to fix nitrogen in the soil, enhancing its utility as a natural fertilizer. Additionally, Oxytropis lambertii has a distinctive red flower that adds aesthetic value to gardens and landscapes. While it is generally safe for consumption, foragers should exercise caution and ensure proper identification before harvesting. Oxytropis lambertii thrives in well-drained to moist soils with a pH between 6.4 and 9. For best results, plant seeds directly in the ground during spring or fall. This perennial forb/herb is native to a wide range across North America and is edible, with both its root and seed parts being useful. Its ability to grow in various habitats makes it an excellent choice for gardeners looking to add a hardy, adaptable plant to their landscape.

Quick answers

What is Oxytropis lambertii?

Oxytropis lambertii, commonly known as Lambert's milkvetch, is a perennial forb or herb native to the central and western United States and parts of Canada.

Growingconditions · propagation · uses
V

Cultivation

Oxytropis lambertii thrives in full sun and prefers well-drained to moist soils of light (sandy) or medium texture. It is hardy in zones 3-7 and can grow up to 0.3 meters tall. For best results, plant seeds directly in the ground during spring or fall. This perennial forb/herb is native to a wide range across North America and is edible, with both its root and seed parts being useful. Ensure soil pH between 6.4 and 9 for optimal growth.
Light
Full sun
Water
Dry, Moist
Soil
Light (sandy), Medium
Hardiness
3-7
Life cycle
Perennial
Habit
Forb/herb
Mature size
0.3 m tall
Soil pH
6.4–9
For first-time growers

How to grow Oxytropis lambertii for the first time

8steps

Start with planting Oxytropis lambertii in a sunny spot and follow these beginner-friendly steps.

  1. 1

    What you'll need

    Seeds or small plants, a trowel, watering can.

  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

    Choose well-draining soil with a pH between 6.4 and 9. Ensure containers are at least 15 cm deep.

  4. 4

    Sowing or transplanting

    Direct sow seeds 0.5 cm deep, or plant small plants in the ground or container.

  5. 5

    First two weeks

    Water sparingly to keep soil moist but not soggy. Avoid overwatering.

  6. 6

    Ongoing care

    Provide full sun and water only when the soil is dry. Prune dead leaves as needed.

  7. 7

    Harvest or pruning

    Prune back after flowering to encourage new growth and prevent self-seeding.

  8. 8

    Common mistakes

    Overwatering, planting in heavy soil, neglecting sun exposure, not providing enough space for root growth.

VI

Edible & utility

Edible parts:RootSeed
Edible uses: The root and seeds of Oxytropis lambertii are edible. Roots can be dug and eaten raw or cooked, while the seeds should be dried before consumption. Seeds may also be ground into a meal for use in various dishes.
Other uses:Nitrogen fixerFragrance
Contextrange · companions · related
VII

Distribution

18 native · 0 introduced
Distribution across0 continents· 18 native
Broader regions
native:Arizona, British Columbia, Colorado, Iowa, Kansas, Manitoba, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Saskatchewan, South Dakota, Texas, Utah, Wyoming
IX

Specimen gallery

1 image
Oxytropis lambertii (Oxytropis lambertii) — botanical photograph
Oxytropis lambertii (Oxytropis lambertii)
XI

Explore further

XII

About this entry

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