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Canadian Milk Vetch

Name: Canadian Milk Vetch
Brand: Akène
SKU: AKE-SEMENCES
Price: 4.99 CAD
Availability: OutOfStock

Common name Canada Milkvetch

Latin name Astragalus canadensis

Quantity per packet Minimum 75 seeds

Canada Milkvetch promotes biodiversity, enriches the soil through nitrogen fixation, and supports healthy pollinator populations. Its adaptation to local conditions also minimizes maintenance requirements.

Product information

Product
identification

Common nameCanada Milkvetch

Latin nameAstragalus canadensis

FamilyFabaceae

TypeNative perennial

CyclePerennial

Quantity per packMinimum 75 seeds

Product
description

Canada Milkvetch (Astragalus canadensis) is a hardy native perennial in the pea family (Fabaceae), admired for its elegant clusters of creamy white to pale yellow flowers that bloom from June through July. Its graceful green foliage and naturally upright habit, reaching 60 to 90 cm (24 to 36 in) in height, bring light texture and movement to prairie gardens, naturalized borders, and ecological landscapes. Hardy to -40°C (-40°F), this long-lived native perennial returns reliably each year and is valued not only for its nectar-rich flowers but also for its ability to naturally enrich the soil through nitrogen fixation.

Canada Milkvetch grows best in full sun to partial shade in well-drained sandy to loamy soil with light to moderate fertility. Once established, it tolerates relatively dry conditions but benefits from moderate watering during its first growing season. The seeds germinate best after light scarification followed by cold stratification and should be sown about 5 mm deep in a lightly moist growing medium. A light application of compost in spring is generally sufficient, as this nitrogen-fixing legume rarely benefits from high-nitrogen fertilizers. When grown in containers, a deep pot with excellent drainage is essential to accommodate its long taproot.

Ideal for prairie plantings, pollinator gardens, naturalized landscapes, and ecological restoration projects, Canada Milkvetch pairs beautifully with Wild Bergamot, Goldenrod, Purple Coneflower, and Black-eyed Susan. Its flowers attract native bees, bumblebees, and many other beneficial pollinating insects, while its seed pods can be left on the plant to encourage natural reseeding. Although it has a long history of traditional medicinal use, Astragalus canadensis is now grown primarily for its ecological value, ornamental beauty, and important role in supporting healthy native ecosystems.

Sowing
guide

Sowing periodAutumn or spring after scarification and cold stratification

Best time

Autumn or spring after scarification and cold stratification

Sowing depth5 mm

Spacing / density

45 to 60 cm (18 to 24 in)

Germination temperature18 to 22°C (64 to 72°F)

Germination time15 to 20 days

Propagation

Propagate by seed or by occasional division of mature clumps.

Growing
method

Canada Milkvetch seeds benefit from light scarification followed by cold stratification to improve germination. Sow the seeds about 5 mm deep in a light, well-drained growing medium and maintain consistent moisture without waterlogging. This native perennial thrives in full sun and relatively poor to moderately fertile soils. Like other legumes, Astragalus canadensis naturally enriches the soil through nitrogen fixation. Once established, it requires very little maintenance and performs exceptionally well in Canadian climates.

Soil
and care

ExposureFull sun to partial shade

Soil

Well-drained sandy to loamy soil. This species prefers light to moderately fertile soils and tolerates relatively dry conditions once established.

Soil pH6.0 to 7.5

Watering

Moderate watering is sufficient once established. Well-drained soil is essential for maintaining healthy roots.

Fertilization

A light application of compost each spring is sufficient. High-nitrogen fertilizers are unnecessary because this legume naturally enriches the soil through nitrogen fixation.

Care levelLow

In spring, remove the previous year's dry stems and monitor new growth. During summer, water only during prolonged dry periods. This species tolerates poor soils well and requires very little maintenance. In autumn, leave the seed pods on the plant to feed wildlife and encourage natural reseeding.

Container
growing

Recommended pot size

30 to 40 cm (12 to 16 in)

Canada Milkvetch can be grown in a deep container filled with a very well-drained growing medium. This legume develops a substantial taproot that requires adequate space for long-term growth. Place the container in full sun and avoid excessive watering to prevent root rot. Container culture is also useful for improving drainage in regions with consistently wet soils.

Bloom,
harvest
and garden

This native perennial naturally improves soil fertility while producing abundant flowers highly valued by pollinators. Its adaptation to Canadian climates makes it an excellent choice for ecological gardens.

Garden use

Canada Milkvetch is ideal for prairie gardens, pollinator habitats, and naturalistic landscapes. It pairs beautifully with Purple Coneflowers, Black-eyed Susans, Wild Bergamot, and Goldenrod to create plantings inspired by native grasslands. Its ability to enrich the soil also makes it an outstanding species for ecological restoration projects.

Bloom period

Summer flowering produces clusters of pale blossoms highly attractive to pollinators while adding a natural touch to prairie gardens.

Flower colorCreamy white to pale yellow

Foliage colorGreen

Harvest

August to October

Fruiting

Decorative seed pods containing numerous seeds

Wildlife appealBees and pollinators

Size
and facts

Height24 to 36 in. (60 to 90 cm)

Spread45 to 60 cm (18 to 24 in)

Growth rateModerate

Hardiness zoneUSDA Zones 3–8

Minimum temperature-40°C (-40°F)

Foliage typeDeciduous

Papillonstrue

Insectes utilestrue

Planting
partners

Good companions

Wild Bergamot, Goldenrod, Purple Coneflower, Black-eyed Susan

Avoid planting with

Northern Blue Flag Iris, Marsh Marigold, Ligularia, Horsetail

Recipe
and inspiration

Young shoots and certain parts of the plant have been used traditionally, but Canada Milkvetch is now grown primarily for its ecological value and historical medicinal significance. As with all wild plants, traditional food uses should be carefully verified before consumption. Its nectar-rich flowers attract a remarkable diversity of beneficial pollinating insects.

Frequently asked questions

When should I sow Canada Milkvetch seeds? +

Canada Milkvetch seeds are best sown in autumn or in spring after scarification and cold stratification to improve germination.

Does Canada Milkvetch need rich soil? +

No. It grows well in well-drained soils and naturally improves soil fertility through its symbiotic relationship with nitrogen-fixing bacteria.

Is Canada Milkvetch beneficial for pollinators? +

Yes. Its flowers attract native bees, bumblebees, and many other beneficial pollinating insects.

Can Canada Milkvetch be grown in containers? +

Yes. Canada Milkvetch grows well in containers provided they are deep and filled with a very well-drained growing medium.

How do you care for Canada Milkvetch? +

Once established, Canada Milkvetch requires very little maintenance. Light weeding and excellent drainage are generally all that is needed.

The availability of our seeds varies depending on seasonal availability, production schedules and supplier inventory. Certain varieties may only be offered for a limited time based on their natural growth cycle, sowing period or available stock. These product pages are designed to help and inspire gardeners in choosing the right seeds for vegetable gardens, flower beds, pollinator gardens, container growing, naturalization projects and sustainable outdoor spaces.