Sale
Sold out
Hairy fruit picker
Wild Senna actively supports biodiversity by feeding pollinators throughout summer. As a nitrogen-fixing legume, it also contributes to healthier, more fertile soils.
Share
Product information
Product
identification
identification
Common nameWild Senna
Latin nameSenna hebecarpa
FamilyFabaceae
TypeNative perennial
CyclePerennial
Quantity per packMinimum 25 seeds
Code produitAKENE-0010
Product
description
description
Sowing
guide
guide
Sowing periodAutumn or spring after scarification and cold stratification
Best time
Autumn or spring
Sowing depth5 mm
Spacing / density
60 to 90 cm (24 to 36 in)
Germination temperature20 to 22 °C (68 to 72 °F)
Germination time7 to 20 days
Propagation
Propagate primarily by seed after scarification and cold stratification. Mature plants may also self-seed naturally under favorable conditions.
Growing
method
method
Sow Wild Senna seeds after light scarification followed by cold stratification to break seed dormancy. Sow the seeds about 5 mm deep in a well-drained growing medium kept evenly moist until germination. This native legume thrives in full sun and gradually develops into a vigorous perennial. Like many members of the Fabaceae, Senna hebecarpa naturally enriches the soil through nitrogen fixation. Once established, it requires very little maintenance and returns reliably each year with brilliant yellow flowers that attract countless pollinators.
Soil
and care
and care
ExposureFull sun to partial shade
Soil
Well-drained loamy to clay soil. This species prefers fertile soils but adapts well to many well-drained garden soils.
Soil pHAcidic to neutral
Watering
Moderate watering is recommended during establishment to keep the soil lightly moist. Once established, the plant tolerates short periods of moderate drought.
Fertilization
A light application of compost each spring is generally sufficient. Avoid excessive fertilization, which encourages lush foliage at the expense of flowering.
Care levelModerate
In spring, remove the previous year's dry stems and apply a light layer of compost. During summer, water during extended dry periods while allowing the flowers to support pollinators. In autumn, leave the decorative seed pods in place to encourage natural reseeding and benefit wildlife. A light mulch may be applied before winter to protect the soil. Once established, Wild Senna requires very little maintenance.
Container
growing
growing
Recommended pot size
30 to 45 cm (12 to 18 in)
Wild Senna can be grown in a large, deep container during its early years. Use a rich, well-drained growing medium and place the container in full sun for best flowering. Water regularly without allowing the soil to become waterlogged, and ensure excellent drainage. Transplanting into the ground is recommended once the plant reaches maturity for optimal long-term performance.
Bloom,
harvest
and garden
harvest
and garden
Its brilliant yellow flowers attract an exceptional diversity of pollinators while adding vibrant color to natural gardens. This native perennial also improves biodiversity and blends beautifully into ecological landscapes.
Wild Senna actively supports biodiversity by feeding pollinators throughout summer. As a nitrogen-fixing legume, it also contributes to healthier, more fertile soils.
Garden use
Wild Senna is perfectly suited to wildflower meadows, pollinator gardens, and ecological restoration projects. It combines beautifully with Black-eyed Susans, Wild Bergamot, Purple Coneflowers, and other native perennials to create vibrant, biodiversity-rich landscapes. Its abundant flowering attracts beneficial wildlife while adding bold natural beauty to gardens of every size.
Bloom period
Abundant clusters of bright yellow summer flowers attract native bees, butterflies, and many beneficial pollinating insects while providing long-lasting ornamental interest.
Flower colorYellow
Foliage colorGreen
Harvest
September to October
Fruiting
Decorative hairy seed pods that persist into autumn.
Wildlife appealBees and pollinators
Size
and facts
and facts
Height1 to 1.5 m (3.3 to 5 ft)
Spread60 to 90 cm (24 to 36 in)
Growth rateModerate
Hardiness zoneUSDA Zones 3–8
Minimum temperature-35°C (-31°F)
Foliage typeDeciduous
Papillonstrue
Insectes utilestrue
Planting
partners
partners
Good companions
Wild Bergamot, Purple Coneflower, Black-eyed Susan, Goldenrod
Avoid planting with
Northern Blue Flag Iris, Marsh Marigold, Horsetail, Ligularia
Recipe
and inspiration
and inspiration
Wild Senna is not generally grown for culinary use. Its greatest value lies in its abundant flowering, which provides essential food for pollinators, and its ecological role in naturalized landscapes. The decorative seed pods can be left on the plant to enhance autumn interest and benefit wildlife, making this species an outstanding choice for ecological gardens.
Frequently asked questions
Wild Senna seeds can be sown in autumn or spring after scarification and cold stratification. This preparation significantly improves germination and encourages more uniform seedling emergence.
Yes. Its abundant yellow flowers attract native bees, bumblebees, butterflies, and many other beneficial pollinating insects throughout summer.
Yes. Wild Senna is especially well suited to pollinator gardens, wildflower meadows, and ecological restoration projects where native species are desired.
Once established, Wild Senna requires very little maintenance. It tolerates typical garden conditions well and is fully hardy in Canadian climates.
Its elegant foliage, brilliant yellow flowers, and exceptional ecological value make Wild Senna one of the finest native perennials for supporting biodiversity and creating sustainable landscapes.
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.
