Why White Calla Lily Blooms Turn Green

Calla lily spathes (the showy "petal") naturally age from white to green as they mature and prepare to set seed. If your plant produced white blooms when purchased but subsequent flowers stay green, it may simply be the natural progression—each bloom lasts weeks, gradually greening.

What to Check

• Are new blooms emerging from the crown and staying green from day one? If so, the plant may be stressed (too much nitrogen, insufficient light).
• Stop high‑nitrogen fertilizer; ensure 6+ hours of sun.
• Allow the plant to go dormant in fall; repot if rhizomes are crowded.

Green spathes are normal aging; persistent green from opening suggests cultural issues.