Turks Cap is a perennial grown for its blooms, which open in summer and return year after year. It's hardy across USDA zones 7 through 11, shrugs off deer and shrugs off dry spells. Its summer flowers are a real draw for hummingbirds and butterflies.
Zones
7-11
pH Range
6-8.5
Sun
Full Sun
Days to Maturity
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What Turks Cap is
Turks Cap grows as a perennial and reaches around six feet at maturity. It blooms in summer. It's also deer-resistant.
How to grow Turks Cap
Turks Cap grows in USDA zones 7 through 11. Turks Cap does best in full sun — at least 6 hours of direct sun a day — and soil from pH 6 to 8.5, on evenly moist to well-drained ground. It needs a growing season of at least 365 frost-free days, which is why climate matters as much as soil.
USDA Zones
7-11
USDA PHZM 2023
Soil pH
6 - 8.5
USDA PLANTS Database
Sun
Full Sun
Growable Ground plant catalog
Drainage
poorly (saturated >50% of year), well (dry spells)
Growable Ground plant catalog
Frost Tolerance
50°F
The lowest temperature it shrugs off — below this, expect damage without cover.
Growable Ground plant catalog
Mature Height
6 ft
Growable Ground plant catalog
Frost-Free Days
365+
The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.
Growable Ground plant catalog
Start the season right
Plant turks cap in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Turks Cap prefers pH 6 to 8.5 (FAO ECOCROP). 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. A 2–3 inch mulch layer holds moisture without waterlogging.
Harvest at its peak
Cut turks cap blooms in the cool of the morning, just as they open, for the longest display.
Good to know
Good news for pet owners — turks cap isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Turks Cap is a standout pollinator plant — high value to bees and other pollinators. (Source: Lady Bird Johnson Wildflower Center.)
Where Turks Cap thrives
Turks Cap is hardy across USDA zones 7 through 11. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
Zones 7–11·Where Turks Cap growsOpen map →
On USDA hardiness-zone overlap, Turks Cap can grow in these states:
See if Turks Cap will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether turks cap actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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Frequently Asked Questions
Can I grow Turks Cap in my zone?
Turks Cap grows in USDA hardiness zones 7 through 11 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Turks Cap?
Most growers plant turks cap after the last spring frost, once the soil has warmed, leaving enough of the season for its 365-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Turks Cap need?
Turks Cap needs full sun — a spot that catches at least 6 hours of direct summer sun a day. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.
What soil does Turks Cap need?
Turks Cap prefers soil pH 6 to 8.5, on evenly moist to well-drained ground (FAO ECOCROP). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Turks Cap attract pollinators?
Yes — turks cap's flowers are a strong nectar and pollen source for hummingbirds and butterflies. (Source: Lady Bird Johnson Wildflower Center.)
Is Turks Cap safe for pets?
Turks Cap is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)