Neglected Milk-vetch (Astragalus neglectus)

Photo: Reuven MartinCC0via Wikimedia Commons

Neglected Milk-vetch Plant Care

Astragalus neglectus (Torr. & A.Gray) E.Sheld.

Updated · Sources · How we source care data

This plant is easily recognizable by its fern-like leaves that form a dense mat on the ground. Astragalus neglectus is native to the rocky slopes and dry grasslands of the western United States. Plant collectors are drawn to this species for its unique appearance and its ability to thrive in xeric conditions.

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Water

Every 7–10 days

Light

Full sun to partial shade

Temp

60–80°F

Humidity

40–60%

At a glance

How do you care for Neglected Milk-vetch?

Plant Neglected Milk-vetch in full sun to partial shade (USDA zones 3a–7b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 8 months during the growing season.

Where Is the Neglected Milk-vetch Native To?

Native range3 countries

What Is the Neglected Milk-vetch?

Neglected Milk-vetch (Astragalus neglectus) belongs to the Fabaceae family within the Astragalus genus. Neglected Milk-vetch is native to northeastern North America. Neglected Milk-vetch is also known as Neglected Loco, Astragalus cooperi, Astragalus neglectus.

Neglected Milk-vetch displays a low spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 2 ft. Neglected Milk-vetch produces small pea-like flowers in shades of purple, pink, or white.

Leaf size: approximately 1 inches.

How Often Should You Water a Neglected Milk-vetch?

Water a young or newly planted Neglected Milk-vetch every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–10 days

Until established; then in dry spells

What Light Does the Neglected Milk-vetch Need?

Neglected Milk-vetch thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Neglected Milk-vetch Prefer?

Astragalus neglectus tolerates temperatures of 60–80°F. Neglected Milk-vetch prefers humidity levels of 40–60%.

Temperature

60–80°F

Humidity

40–60%

What Soil Mix Works Best for a Neglected Milk-vetch?

Well-draining sandy soil mix with added perlite for extra drainage. Good drainage is essential for Neglected Milk-vetch to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Neglected Milk-vetch?

Feed Neglected Milk-vetch every 8 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 8 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Neglected Milk-vetch?

Choose a spot with full sun to partial shade and well-draining sandy soil mix with added perlite for extra drainage. Avoid low spots where water collects after rain.

Neglected Milk-vetch is suited to USDA Zone 3a – 7b.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Neglected Milk-vetch?

Neglected Milk-vetch can spread to about 2 ft (0.6 m) and reach about 1 ft (0 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Neglected Milk-vetch?

Prune Neglected Milk-vetch while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Neglected Milk-vetch in Winter?

Neglected Milk-vetch is hardy down to USDA zone 3a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

How Do You Propagate a Neglected Milk-vetch?

Neglected Milk-vetch can be propagated through seeds, division of root ball.

Is the Neglected Milk-vetch Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Neglected Milk-vetch, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Neglected Milk-vetch?

Neglected Milk-vetch is susceptible to aphids, spider mites, leafhoppers. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Neglected Milk-vetch Need?

Neglected Milk-vetch grows outdoors in USDA Zone 3a – 7b. It survives winters down to planting zone 3a. Neglected Milk-vetch is native to northeastern North America.

Hardiness Zone

Zone 3a – 7b

Keep exploring plants

Neglected Milk-vetch is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Astragalus genus — compare its care with other Astragalus species on PlantoScan.

Astragalus is part of the Fabaceae plant family — browse all Fabaceae genera and species.

Neglected Milk-vetch thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Astragalus neglectus (Torr. & A.Gray) E.Sheld., family Fabaceae (first published in Minnesota Bot. Stud. 1: 59 (1894)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Neglected Milk-vetch, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: Reuven Martin, CC0, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 3a – 7b, estimated from the plant's typical growing conditions.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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