Charles de L'Ecluse (Clusius) is responsible for much of the spread of tulip bulbs in the final years of the sixteenth century. He was the author of the first major work on tulips, finally completed in 1592. Clusius had already begun to note and remark upon the diseased variations in colour that made the tulip so admired. His taste for tulips quickly spread to others. While occupying a chair in the medical faculty of the University of Leiden, Clusius planted both a teaching garden and his own private plot with tulip bulbs. In 1596 and 1598, however, Clusius suffered thefts from his garden, with over a hundred bulbs stolen in a single raid.
Between 1634 and 1637, the early enthusiasm for the new flowers triggered a speculative frenzy now known as the tulip mania and tulip bulbs were then considered a form of currency. The Netherlands and tulips are still associated with one another. The term 'Dutch tulips' is often used for the cultivated forms.
Cut stems at 45 degrees and place in water which has had flower feed dissolved into it.