Double tulips show off twice as many petals as other tulips making a beautiful array. These tulips flower brilliantly on 30-40 cm stems making a great cut flower. They are easy to grow in a sunny well drained position, but prefer a southern cool spot in warmer districts. Plant the bulbs in well prepared soil, 6-8 cm deep and 10-15cm apart, ideally in bold clumps. If drainage is a problem, plant slightly shallower and mound the soil over them. Tip: Snap off the old flower heads to push their energy into bulb growth. Tulips are best lifted in November to December and kept in a cool dry place with air movement.