How to grow Lilium lancifolium from cuttings

Common name(s): Tiger Lily, Easter Lily and others
Family: Liliaceae
Stem cuttings: no
Leaf cuttings: no
Root cuttings/runners: yes bulbils
Time: spring to early summer
Lighting: bright to shaded
Soil: mixes for cacti and succulents, indoor plants, herbs, vegetables
Temperature: 15 to 30 °C
New growth after: first bulbils are shown after 4 to 6 weeks, leaves and roots start to grow after 8 to 10 weeks
More infos: the bulb cuttings can be grown in soil but also do good if placed in a seed sprouter. Keep the soil moist but not soggy. Air and water the cuttings in the sprouter every day.
Adult Tiger Lilies also form bulblets in the leaf axils.