Paragan ke baad phool rang badal lete hain

Kuch phool (jaise lantana) paragan hote hi apni pankhudiyon ka rang peele se laal ya gehra jaamuni kar lete hain. Yeh keeton ko sanket hai ki is phool ka makrand khatam ho gaya — isliye murjhaye ya rang-badle phoolon ki deadheading karne se naye phool aate hain.