Also known as Narrow-Petaled Trillium · Narrow-Petaled Wakerobin
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Narrowpetal wakerobin (Trillium angustipetalum) is a rare woodland perennial with distinctive, long, narrow petals. It thrives in moist, shaded environments and blooms in
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade
50% intensity
Prefers dappled shade, typical of woodland understories.
Consistent Moisture
50% intensity
Keep soil evenly moist but not waterlogged. Reduce in dormancy.
Rich, moist, well-drained, acidic to neutral loam
50% intensity
Cool to Moderate
50% intensity
Thrives in cooler temperatures; requires a cold dormancy period.
Low
25% intensity
Light feeding with compost in spring is usually sufficient.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 3/5 intensity |
| Toxic for pets | Yes 3/5 intensity |
| Edible | No |
All parts are toxic if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Trillium angustipetalum prefers consistently moist soil, mimicking its woodland habitat. Water thoroughly when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.
Reduce watering during its dormant period in late summer.
Pruning is minimal for Trillium angustipetalum. Remove dead or damaged foliage in late fall or early spring before new growth emerges. This helps prevent disease and tidies the plant's appearance.
No significant shaping or structural pruning is typically needed.
Propagation is primarily through division of mature rhizomes in late summer or early fall after the plant has gone dormant. Seeds can be collected when ripe, but they require a lengthy and complex stratification process, making them less practical for home propagation.
Repotting Trillium angustipetalum is rarely necessary unless the plant is severely pot-bound or needs to be divided. If repotting is required, do so in late summer or early fall.
Use a well-draining, humus-rich potting mix and ensure the rhizome is planted at the correct depth.
Identify plants like this with ePlant AI
Snap a photo to get care tips and match similar species on the go.
Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Narrowpetal Wakerobin (Trillium angustipetalum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Liliales |
| Family | Melanthiaceae |
| Genus | Trillium |
| Species | Trillium angustipetalum |
Similar in genus Trillium
Answers based on plant encyclopedia data
