Largeleaf Grass of Parnassus Plant Care
Parnassia grandifolia DC.
Updated · Sources · How we source care data
Parnassia grandifolia, also known as bigleaf grass of Parnassus, is a flowering herbaceous plant of the family Celastraceae.
Partial shade to full shade
At a glance
How do you care for Largeleaf Grass of Parnassus?
Largeleaf Grass of Parnassus grows best in partial shade to full shade.
What Is the Largeleaf Grass of Parnassus?
Largeleaf Grass of Parnassus (Parnassia grandifolia) belongs to the Celastraceae family within the Parnassia genus.
Largeleaf Grass of Parnassus displays a low rosette, clumping growth habit, reaching up to tall with a spread of approximately . Largeleaf Grass of Parnassus produces delicate white flowers with distinctive green veins.
What Light Does the Largeleaf Grass of Parnassus Need?
Largeleaf Grass of Parnassus thrives in partial shade to full shade. Avoid placing Largeleaf Grass of Parnassus in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial shade to full shade
What Soil Mix Works Best for a Largeleaf Grass of Parnassus?
Moist, well-draining soil with high organic content. Good drainage is essential for Largeleaf Grass of Parnassus to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Largeleaf Grass of Parnassus?
Repot every 1-2 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 Largeleaf Grass of Parnassus?
Largeleaf Grass of Parnassus can be propagated through division, seeds. Similar propagation techniques also apply to wild ginger grass of parnassus plant care, which shares the same genus.
Is the Largeleaf Grass of Parnassus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Largeleaf Grass of Parnassus, 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 Largeleaf Grass of Parnassus?
Largeleaf Grass of Parnassus is susceptible to aphids, leaf miners, 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.
Keep exploring plants
Largeleaf Grass of Parnassus 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 Parnassia genus — compare its care with other Parnassia species on PlantoScan.
Parnassia is part of the Celastraceae plant family — browse all Celastraceae genera and species.
Largeleaf Grass of Parnassus copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Parnassia grandifolia DC., family Celastraceae (first published in Prodr. 1: 320 (1824)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Largeleaf Grass of Parnassus, 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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