Hairy Clematis Plant Care
Clematis hirsutissima Pursh
Updated · Sources · How we source care data
Clematis hirsutissima is a species of flowering plant in the buttercup family known by the common name hairy clematis or vase flower. It is a perennial herb that is native to much of the western United States, from Washington to Nebraska.
Every 7–10 days
Full sun to part shade
50–75°F
40–70%
At a glance
How do you care for Hairy Clematis?
Water Hairy Clematis every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to part shade. It prefers temperatures of 50–75°F (10–24°C) and 40–70% humidity. Fertilize it every 4 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the Hairy Clematis Native To?
What Is the Hairy Clematis?
Hairy Clematis (Clematis hirsutissima) belongs to the Ranunculaceae family within the Clematis genus. Hairy Clematis is native to much of the western United States, from Washington to Nebraska.
Hairy Clematis displays a climbing vine growth habit, reaching up to 15 ft tall with a spread of approximately 5 ft. Hairy Clematis produces large, showy flowers in various colors.
Leaf size: approximately 4 inches.
How Often Should You Water a Hairy Clematis?
Clematis hirsutissima requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Hairy Clematis Need?
Hairy Clematis thrives in full sun to part shade.
Light Requirement
Full sun to part shade
What Temperature and Humidity Does the Hairy Clematis Prefer?
Clematis hirsutissima grows best at temperatures of 50–75°F. Hairy Clematis prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Hairy Clematis?
Rich, well-draining soil with plenty of organic matter. Good drainage is essential for Hairy Clematis to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Hairy Clematis?
Feed Hairy Clematis every 4 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 4 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 Hairy Clematis?
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 Hairy Clematis?
Hairy Clematis can be propagated through softwood cuttings, layering, seeds. Similar propagation techniques also apply to italian clematis plant care, which shares the same genus.
Is the Hairy Clematis Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
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 Hairy Clematis?
Hairy Clematis is susceptible to aphids, spider mites, slugs. 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 Hairy Clematis Need?
Hairy Clematis grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Hairy Clematis is native to much of the western United States, from Washington to Nebraska. In cooler regions, grow Hairy Clematis as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Hairy Clematis 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 Clematis genus — compare its care with other Clematis species on PlantoScan.
Clematis is part of the Ranunculaceae plant family — browse all Ranunculaceae genera and species.
Hairy Clematis thrives in bright light and direct sun — see other bright-light plants.
More Clematis Species
Other Clematis species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Clematis hirsutissima Pursh, family Ranunculaceae (first published in Fl. Amer. Sept. 2: 385 (1813)) — World Flora Online record, IPNI name record.
- Pet toxicity: Hairy Clematis is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, 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.
Identify Plants Like the
Hairy Clematis Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species