Growing Tiger Lily Bulbils: Virus Risks and Planting Guide

Tiger lily (Lilium lancifolium) bulbils (stem-axis bulblets) are easy to propagate but carry virus risk to other lilies.

Virus Considerations

• Tiger lily is a symptomless carrier of lily mosaic and other viruses.
• Risk mainly to other lilies and bulb/tuber plants.
• Shrubs, perennials, annuals—no significant risk.

Bulbil Planting Protocol

1. Timing: Fall (September–October) best.
2. Nursery bed: Dedicated area, no other lilies nearby.
3. Depth: 2.5 cm (1 in) deep; they've already initiated roots.
4. Spacing: 5 cm apart.
5. Growth: Grass-like shoots emerge spring; bloom in 2–3 years.

Sanitation

• Sterilize tools between lily plantings.
• Rogue any plants showing streaking, mottling, distortion.
• Consider virus-tested stock for prized collections.

Enjoy the propagation project—just keep tiger lily progeny isolated from other lilies.