Great Waterleaf Plant Care
Hydrophyllum appendiculatum Michx.
Updated · Sources · How we source care data
Hydrophyllum appendiculatum, commonly known as great waterleaf, appendage waterleaf, or woolen breeches, is native to central and eastern North America where it is found primarily in the Midwest and Upper South of the United States. It is a biennial that produces lavender-colored flowers in late spring and early summer.
Partial to full shade
At a glance
How do you care for Great Waterleaf?
Great Waterleaf grows best in partial to full shade.
Where Is the Great Waterleaf Native To?
What Is the Great Waterleaf?
Great Waterleaf (Hydrophyllum appendiculatum) belongs to the Boraginaceae family within the Hydrophyllum genus. Great Waterleaf is native to central and eastern North America. Great Waterleaf is also known as Appendaged Waterleaf.
Great Waterleaf displays a low rosette, spreading groundcover growth habit, reaching up to tall with a spread of approximately . Great Waterleaf produces small, delicate bell-shaped flowers in shades of blue or white.
What Light Does the Great Waterleaf Need?
Great Waterleaf thrives in partial to full shade. Avoid placing Great Waterleaf in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial to full shade
What Soil Mix Works Best for a Great Waterleaf?
Moist, well-draining soil rich in organic matter. Good drainage is essential for Great Waterleaf to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Great Waterleaf?
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 Great Waterleaf?
Great Waterleaf can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to canadian waterleaf plant care, which shares the same genus.
Is the Great Waterleaf Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Great Waterleaf, 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 Great Waterleaf?
Great Waterleaf is susceptible to slugs, snails, powdery mildew. 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.
Keep exploring plants
Great Waterleaf 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 Hydrophyllum genus — compare its care with other Hydrophyllum species on PlantoScan.
Hydrophyllum is part of the Boraginaceae plant family — browse all Boraginaceae genera and species.
Great Waterleaf copes with lower light than most plants — browse the full list of low-light plants.
More Hydrophyllum Species
Other Hydrophyllum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Hydrophyllum appendiculatum Michx., family Boraginaceae (first published in Fl. Bor.-Amer. 1: 134 (1803)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Great Waterleaf, 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.
- 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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