How to Fertilize Tulipa 'Mark Design'?
Tulip bulb feed every four weeks pre bloom bud formation

Tulipa 'Mark Design' · Tulipa 'Mark Design'
Plant bulbs in late autumn, at a depth of 10-15cm (4-6in) in fertile, well-drained soil. Choose a sunny position, with protection from strong winds and excess winter wet. Lift bulbs annually, once the leaves have died down, and ripen in a cool greenhouse, keeping dry over the summer. See tulip cultivation for more details
Tulip bulb feed every four weeks pre bloom bud formation