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The illustrated growing guide

Turtlehead

Chelone glabra

Family Plantaginaceae

Est. zones 3-8

Botanical illustration of Turtlehead
Perennial · Chelone glabra

A delightful native whose late-summer flowers really do look like little turtle heads (bumblebees push right inside), for the moist shade where few things bloom so late. Its ecological headline: it's the essential host plant for the rare, gorgeous Baltimore checkerspot butterfly. Give it constantly moist soil — a rain garden or streamside — and it's carefree and deer-resistant.

Perennial · NativeFull Sun to Part ShadeHigh waterModerate growthDeer-resistantNative to North AmericaAttracts butterfliesAttracts bees

Where to buy the plant — 2 nurseries

Turtlehead — a print from the Wildflowers Vol. 3 collection

From the print shop

Growing turtlehead? Hang it.

Our Wildflowers Vol. 3 collection carries turtlehead — Chelone glabra, print Nº 1, “Turtlehead.”

16 designsfrom $21.99white or black groundmatte poster, unframed

Shop Wildflowers Vol. 3 botanical prints →

I

Overview

Will turtlehead suit your garden, and what goes wrong.

✓

Will it thrive where you are?

Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what turtlehead actually needs.

Hardy inZones 3-8

Turtlehead at a glance

HardinessUSDA 3–8
Mature size2-3 ft
PollinationBumblebees pry into the hooded flowers; the SOLE larval host for the Baltimore checkerspot butterfly
Chill requirementNot yet established
Bloom seasonLate Summer - Fall — white or pink hooded flowers shaped like a turtle's head
Harvest seasonNot yet established
Growth rateModerate

Common turtlehead problems

II

Growing

Light, water, soil, propagation and the season’s jobs.

How to grow turtlehead: light, water & soil

LightFull Sun to Part Shade (if moist)
WaterHigh — a wetland native; never let it dry
SoilRich, moist to wet · pH 5.5 - 7.0
FertilizerNone
PruningCut back in spring — A charming native for wet shade — late-summer flowers shaped exactly like a turtle's open mouth, in white or pink, that bumblebees have to force their way into. Critically, it's the primary host plant for the beautiful, declining Baltimore checkerspot butterfly. Wants constantly moist to wet soil (rain garden, streamside, pond edge). Deer-resistant.
Spacing18-24 in

How to plant & propagate turtlehead

PropagateDivision or seed

When to spray turtlehead

Growing season. Keep it moist; that prevents mildew.

III

The year

What turtlehead asks for, month by month.

The turtlehead year, month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Bloom
Prune

What each band means

  • Bloom — flowers open — pollinators working, frost on blossoms is the danger.
  • Prune — shape it now — cuts heal cleanly and structure is visible.

The turtlehead year as text

  • Jan quiet month
  • Feb quiet month
  • Mar pruning
  • Apr pruning
  • May pruning
  • Jun quiet month
  • Jul quiet month
  • Aug bloom
  • Sep bloom
  • Oct bloom
  • Nov bloom
  • Dec quiet month

These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.

IV

Ecology & uses

What it does for the garden, and what it is grown for.

Turtlehead in the garden system

  • Herbaceous layer perennial
  • Nectary/insectary
  • Hosts Baltimore checkerspot butterfly (primary host)
AttractsButterflies, Bees
HabitatWetland
MoistureWetland / wet-tolerant
DeerResistant — a safer unfenced choice
OriginNative to North America

What turtlehead is grown for

✓ Not known to be toxic

UseWet shade bloom
UseBaltimore checkerspot host
UseRain gardens

Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.

V

Cultivars

Named varieties of turtlehead, ruled as a catalogue.

Best turtlehead varieties & cultivars

Species (white); C. lyonii 'Hot Lips' (pink, garden favorite)

VI

Sources & plant ID

Where the care distinctions come from, and how the plant is filed.

Research basis

Sources behind this profile

No extension citations are attached to turtleheadyet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialChelone glabra
FamilyPlantaginaceae
TypePerennial
USDA symbolCHGL2
OriginNative to North America
Invasive riskLow

VII

Where to buy

Third-party nurseries — not Story Thyme Farms.

Third-party nurseries, not Story Thyme Farms. Prices are theirs.

Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.

Nature HillsHot Lips Turtlehead$32.58↗EtsyBrowse growers↗

VIII

Questions

Turtlehead questions, answered straight.

Do deer eat turtlehead?

Rarely — turtlehead is considered deer-resistant, which makes it one of the safer unfenced choices in deer country. Hungry deer in a hard winter test every rule, but it's a low-risk pick.

Is turtlehead safe for kids and pets?

Turtlehead is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.

How do you propagate turtlehead?

Division or seed.

IX

Elsewhere

Where turtlehead sits in the library.

Where turtlehead sits in the library

Native plants135Deer-resistant plants57All collections

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