Narrowpetal WakerobinTrillium angustipetalum

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.