Trout Lily is a perennial grown for its yellow blooms, which open in summer and return year after year. Notably, it shrugs off deer. Its summer flowers are a moderate draw for native bees.
Zones
Data not available
pH Range
5-7
Sun
Shade
Days to Maturity
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Score Trout Lily on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether trout lily actually takes — and those shift from one yard to the next. Enter your address and we'll score trout lily against your land's real conditions.
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What Trout Lily is
Trout Lily grows as a perennial and reaches around 6 inches at maturity. It blooms yellow in summer. It's also deer-resistant.
How to grow Trout Lily
Trout Lily does best in shade — at least 2 hours of direct sun a day — and soil from pH 5 to 7, on well-drained ground.
USDA Zones
Data not available
USDA PHZM 2023
Soil pH
5 - 7
USDA PLANTS Database
Sun
Shade
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
Mature Height
0.5 ft
plant_species_v5.csv
Start the season right
Plant trout lily in shade with at least 2 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Trout Lily prefers pH 5 to 7 (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. A 2–3 inch mulch layer holds moisture without waterlogging.
Harvest at its peak
Cut trout lily blooms in the cool of the morning, just as they open, for the longest display.
Good to know
Good news for pet owners — trout lily isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Trout Lily offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Trout Lily thrives
Whether trout lily 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 Trout Lily will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether trout lily 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 Trout Lily in my zone?
Zone data for trout lily is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant Trout Lily?
Most growers plant trout lily 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 Trout Lily need?
Trout Lily is shade-tolerant — it gets by on as little as 2 hours of direct sun, so it earns a place most vegetables can't use. A north-facing strip or the ground under a leafy canopy is right where it belongs. A Growable Ground report shows which corners of your land stay shaded through the day, turning those dim spots into planting spots.
What soil does Trout Lily need?
Trout Lily prefers soil pH 5 to 7, on well-drained ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Trout Lily attract pollinators?
Yes — trout lily's flowers are a solid nectar source for native bees (Xerces Society, Pollinator Partnership).
Is Trout Lily safe for pets?
Trout Lily is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.