At its best:
Jun, Jul, Aug
Lillies can be potted up to grow on in a cool greenhouse, for early flowers. Add crocks to the base of a container and fill two-thirds with compost.
Scatter slow-release fertiliser granules on the surface of the compost and mix in with your hands.
Handle bulbs carefully when planting. Place bulbs around 5cm apart on the surface of the compost. Cover completely with compost, leaving the shoot tips poking through. Water well to settle the compost around the bulbs, and add more compost if necessary.