How much sun does Largeleaf Grass Of Parnassus need?

Largeleaf Grass Of Parnassus grows best in part shade conditions.

When does Largeleaf Grass Of Parnassus bloom?

Largeleaf Grass Of Parnassus blooms in July, August, and September.

Where is Largeleaf Grass Of Parnassus native?

Largeleaf Grass Of Parnassus (Parnassia grandifolia) is native to AL, AR, FL, GA and 11 more states, per the World Checklist of Vascular Plants (Kew).

What pollinators does Largeleaf Grass Of Parnassus attract?

Largeleaf Grass Of Parnassus draws bees and beetles.

Is Largeleaf Grass Of Parnassus HOA-friendly?

Largeleaf Grass Of Parnassus takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Largeleaf Grass Of Parnassus

Name: Pollinator Patch
Author: Pollinator Patch

Parnassia grandifolia

Last reviewed: August 2026

Toxicity unknown

Largeleaf Grass Of Parnassus (Parnassia grandifolia) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

8"–16" H × 6"–12" W

Bloom

Jul, Aug, Sep

Native to

AL, AR, FL, GA and 11 more states

Pollinators

bees, beetles

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 437 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Ozark Highlands

Largeleaf grass of parnassus is a delicate native perennial that produces white, five-petaled flowers with intricate veining from summer through early fall. This moisture-loving plant forms small clumps with heart-shaped basal leaves and requires consistently wet to moist soil conditions to thrive.

In an HOA neighborhood

Largeleaf Grass Of Parnassus takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Requires very wet conditions that are impractical for most residential landscapes
Small stature and delicate appearance may look sparse or weedy
Specialized bog plant that doesn't fit typical landscaping expectations

Wildlife value

The white flowers attract native bees and beetles during the summer blooming period. This plant provides nectar for pollinators in wetland and moist woodland environments.

Common questions

How much sun does Largeleaf Grass Of Parnassus need?: Largeleaf Grass Of Parnassus grows best in part shade conditions.
When does Largeleaf Grass Of Parnassus bloom?: Largeleaf Grass Of Parnassus blooms in July, August, and September.
Where is Largeleaf Grass Of Parnassus native?: Largeleaf Grass Of Parnassus (Parnassia grandifolia) is native to AL, AR, FL, GA and 11 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Largeleaf Grass Of Parnassus attract?: Largeleaf Grass Of Parnassus draws bees and beetles.
Is Largeleaf Grass Of Parnassus HOA-friendly?: Largeleaf Grass Of Parnassus takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Largeleaf Grass Of Parnassus? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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