Phalaenopsis Spike Yellowing: Natural Dieback, Not Disease

White Phalaenopsis (gift, partial bloom). Spike tip yellowed, spread down, flowers/buds fell. You cut halfway—yellowing continued from new cut. Tried Miracid 30-10-10, repotted to larger clay pot—yellowing persists. Leaves and roots healthy. Fear it will spread to leaves.

Spike Dieback Is Normal

Some Phalaenopsis spikes naturally die back after bloom. Future spikes come from plant base. Healthy leaves and roots mean the plant is fine.

Repot Now (Post-Bloom)

Unpot, clean roots, remove mushy ones, repot in fresh orchid mix. Root rot may have caused early flower loss—checking roots confirms.

Don't Worry About Leaves

Spike death does not spread to leaves. Focus on root health for next bloom cycle.