Nodding Onion Gardens

Native Plant Nursery

Where Wildflowers Grow

Columbia Station, Ohio, USA


Chelone glabra - Turtlehead

Ohio Native Plant - Natural Range

Chelone glabra

Visit the USDA Natural Resources Conservation Service website to view the natural range of Turtlehead.

Native Plant of the Year - LEAP
 (Lake Erie Allegheny Partnership for Biodiversity) -
 Landscaping for Biodiversity with Ohio Native PlantsCleveland Metroparks Technical Report 2017
Turtlehead - Chelone glabra
Chelone glabra - Roger Dahlin
Turtlehead host plant for Baltimore Checkerspot
Baltimore Checkerspot
Photo by Jeff Tome, Senior Naturalist at the Audubon Center and Sanctuary in Jamestown, New York
All rights reserved.

The White Turtlehead is one of the two larval food for the Baltimore Checkerspot, the second is the native Honeysuckel, Euphydryas phaeton1

Wildlife Significance 

Chelone glabra

Nectar Source - for numerous butterflies: Silver-spotted Skipper, Spicebush Swallowtail, Eastern Tiger Swallowtail and humming birds, long tongued bees

Pollinator: bumblebees and humming birds

Host: For the Baltimore caterpillars, a very rare butterfly. Snapdragon family acts as a host for the caterpillar of the Common Buckeye Butterfly.

Leaves: Bitter and not enjoyed by dear and other herbivores

For detailed Information visit the Illinois Wildflower site.

Seed Provenance - 
Nodding Onion Gardens - 2012 - present - Prairie Moon Nursery, Winona, MN - 2010 - 2011

Turtlehead - Chelone glabra
Turtlehead - Roger Dahlin

Cultivation Information

Chelone glabra

Height -  2-3  ft
Flower Color - white

Blooms - July - September

Sun - Full sun/part shade

Hardy Zone - 3 to9

Soil - moist to wet

pH - 4.0 - 6.0

Family - Snapdragon

Benefits from an application of compost around the roots during the summer months

Naturalizes with
- Lobelia cardinalis, Filipendula rubra,  moisture loving species
Chelone glabra -gallon pots
Turtlehead - Chelone glabra ready for market

Propagation Notes - Turtlehead

Storage - Moist Cold -  120 days -
Small Zip lock plastic bag with a few table spoons of  moistened vermiculite

Seeds Planted -

Sprouted -
2-23-2012 -

Night Temperature
- 61 - 63°F

Day Temperature -
64 - 65°F - Under florescent lights

Needed Light -
Did better when planted on top of soil

 Day light 3-6-12 - Few hours of exposure to natural day light

Turtlehead Seeds
Turtlehead Seeds