Photo: Jason BirchCC BY 4.0via iNaturalistresized / cropped
Northern Sweetvetch Plant Care
Hedysarum boreale Nutt.
Updated · Sources · How we source care data
With its unique trifoliate leaves that resemble clover, Hedysarum boreale hails from the arctic regions of North America. Plant collectors are drawn to this species for its striking pink to purple flowers that add a pop of color to any garden, as well as its ability to thrive in harsh climates.
Every 7–14 days
Full sun to partial shade
60–80°F
40–70%
At a glance
How do you care for Northern Sweetvetch?
Water Northern Sweetvetch every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Northern Sweetvetch Native To?
What Is the Northern Sweetvetch?
Northern Sweetvetch (Hedysarum boreale) belongs to the Fabaceae family within the Hedysarum genus. Northern Sweetvetch is native to North America. Northern Sweetvetch is also known as Boreal Sweetvetch.
Northern Sweetvetch displays an upright, spreading perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Northern Sweetvetch produces showy spikes of pink, purple, or white pea-like flowers.
Leaf size: approximately 6 inches.
How Often Should You Water a Northern Sweetvetch?
Hedysarum boreale requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Northern Sweetvetch Need?
Northern Sweetvetch thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Northern Sweetvetch Prefer?
Hedysarum boreale grows best at temperatures of 60–80°F. Northern Sweetvetch prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Northern Sweetvetch?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Northern Sweetvetch to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Northern Sweetvetch?
Feed Northern Sweetvetch every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Northern Sweetvetch?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Northern Sweetvetch?
Northern Sweetvetch can be propagated through seeds, division of root ball. Similar propagation techniques also apply to alpine sweetvetch plant care, which shares the same genus.
Is the Northern Sweetvetch Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Northern Sweetvetch, 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 Northern Sweetvetch?
Northern Sweetvetch is susceptible to aphids, leafhoppers, spider mites. 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 Northern Sweetvetch Need?
Northern Sweetvetch grows outdoors in USDA Zone 13a – 8b. It survives winters down to planting zone 13a. Northern Sweetvetch is native to North America. In cooler regions, grow Northern Sweetvetch as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a – 8b
Keep exploring plants
Northern Sweetvetch 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 Hedysarum genus — compare its care with other Hedysarum species on PlantoScan.
Hedysarum is part of the Fabaceae plant family — browse all Fabaceae genera and species.
Northern Sweetvetch 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: Hedysarum boreale Nutt., family Fabaceae (first published in Gen. N. Amer. Pl. 2: 110 (1818)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Northern Sweetvetch, 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: Jason Birch, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 13a – 8b, calculated from the plant's minimum temperature.
- 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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