White Turtlehead is a perennial grown for its white blooms, which open in summer and return year after year. Notably, it shrugs off deer and grows just as well in a container as in the ground. Its summer flowers are a real draw for native bees, butterflies, and hummingbirds.
Zones
Data not available
pH Range
5.5-7.5
Sun
Part Sun
Days to Maturity
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What White Turtlehead is
White Turtlehead grows as a perennial and reaches around three feet at maturity. It blooms white in summer. It's also deer-resistant and well suited to containers.
How to grow White Turtlehead
White Turtlehead does best in part sun — at least 4 hours of direct sun a day — and soil from pH 5.5 to 7.5, on consistently moist ground.
USDA Zones
Data not available
USDA PHZM 2023
Soil pH
5.5 - 7.5
USDA PLANTS Database
Sun
Part Sun
plant_species_v5.csv
Drainage
poorly (saturated >50% of year)
plant_species_v5.csv
Mature Height
3 ft
plant_species_v5.csv
Start the season right
Plant white turtlehead in part sun with at least 4 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
White Turtlehead prefers pH 5.5 to 7.5 (USDA PLANTS Database). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. Match watering to the plant's drainage preference and your local rainfall.
Harvest at its peak
Cut white turtlehead blooms in the cool of the morning, just as they open, for the longest display.
Good to know
Good news for pet owners — white turtlehead isn't known to be toxic to dogs or cats. (Source: ASPCA.)
White Turtlehead is a standout pollinator plant — high value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where White Turtlehead thrives
Whether white turtlehead thrives on a given site comes down to its soil pH, drainage, sun, and frost dates — the conditions that vary parcel to parcel.
See if White Turtlehead will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether white turtlehead actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
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Frequently Asked Questions
Can I grow White Turtlehead in my zone?
Zone data for white turtlehead is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant White Turtlehead?
Most growers plant white turtlehead after the last spring frost, once the soil has warmed. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does White Turtlehead need?
White Turtlehead does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does White Turtlehead need?
White Turtlehead prefers soil pH 5.5 to 7.5, on consistently moist ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does White Turtlehead attract pollinators?
Yes — white turtlehead's flowers are a strong nectar and pollen source for native bees, butterflies, and hummingbirds (Xerces Society, Pollinator Partnership).
Is White Turtlehead safe for pets?
White Turtlehead is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.