Pendulous Milkvetch (Astragalus pendulus)

Pendulous Milkvetch

Astragalus pendulus

A resilient perennial herb known for its nodding, pea-like blooms. Legume family; other names: nodding milkvetch.

Requires full sun for optimal growth, flowering, and disease prevention.
1/week
Moderate
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Plant Needs

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Sunlight Requires full sun for optimal growth, flowering, and disease prevention.
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Watering Highly drought-tolerant once established; prefers dry to medium moisture and requires excellent drainage.
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Temperature Very cold hardy, adapted to temperate, alpine, and steppe climates.
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Characteristics

  • Leaves: Odd-pinnately compound, leaflets small, elliptic to linear, often covered with fine, appressed hairs that give a grayish-green appearance;
  • Flowers: Inflorescence is a raceme featuring pendulous (nodding) papilionaceous (pea-like) flowers, typically yellowish, pale, or tinged with purple;
  • Stems: Erect or ascending, often branching from the base, slightly pubescent;
  • Fruit: A pendulous legume (pod), often hairy, containing multiple small seeds.
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Care Guide

Watering

Water deeply but infrequently, allowing the soil to dry out completely between waterings.

Fertilization

Apply a light, low-nitrogen top-dressing once as new growth appears, if soil is extremely poor.. Fertilization recommendations description

Eggshell Tea:Crush clean, dried eggshells and steep in water for 3-4 days. Use the strained water to provide calcium without adding excess nitrogen. Avoid using high-nitrogen household scraps like coffee grounds for this desert-adapted legume.
Pruning
  • Cut back dead foliage and stems in late winter or early spring before new growth emerges;
  • Deadhead spent flower stalks to maintain a tidy appearance, though leaving pods can provide winter interest;
  • Avoid cutting into the woody crown of the plant to prevent rot and disease.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic (per ASPCA for Locoweed/Astragalus species); contains swainsonine which can cause severe neurological damage.

Humans: Generally not recommended for consumption; some related species accumulate toxic compounds like swainsonine or selenium which can cause gastrointestinal or mild neurological issues if ingested in large amounts.

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Garden Uses & Culture

Culture: In Western contexts, many plants in the Astragalus genus are known as "locoweeds" due to their profound neurological effects on livestock, a trait that heavily impacted early ranching and pioneer history in the American West.

Usage: Primarily grown in specialized alpine, xeriscape, or rock gardens for its unique nodding flowers, textured foliage, and extreme drought tolerance.