How to Prune Greig's tulip?
Deadhead after flowering and remove fallen petals

Greig's tulip · Tulipa greigii
Also known as: Turkestan tulip
Grow in fertile, well-drained soil in full sun. Protect from strong winds and excess winter wet. Species tulips may be left in the ground for several years, they do not need to be lifted annually. See tulip cultivation for more details
Deadhead after flowering and remove fallen petals