Carefully dig up the tiger lily bulb cluster.
Ease the bulbs apart with your hands. There will be big ones and lots of little ones, bulblets, that may need a year or two underground before growing big enough to produce flowers.
Cut off the dead stems and leaves close to the bulbs.
Dig a hole or a trench twice the depth of the tiger lily bulb.
Put 1 tbsp. of bone meal in the bottom of the hole. Bone meal encourages tiger lilies to produce flowers.
Plant the bulbs with the pointed side up. Backfill with soil, tamping it down firmly on top of the bulb.
Water deeply.
Mulch the bulbs with compost. Compost provides additional nutrients for tiger lily bulbs and helps keep them cool, a condition necessary for optimum growth.