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Oncidium & Dendrobium Reblooming: Maturity & Light Requirements

No Rebloom on Old Growth

Oncidiums never rebloom on old pseudobulbs/spikes. Dendrobiums occasionally rebloom on old canes. Remove dead spikes. New growths must mature fully—equal or larger than previous—to flower.

Defining "Mature"

Oncidium: Pseudobulb hard, firm, with a pair of basal leaves plus apical leaves.
Dendrobium: Cane covered in thin papery sheath.

Light Fix for Small Growths

Small new pseudobulbs signal insufficient light. Gradually increase to near-full sun (acclimate over weeks). Both types thrive outdoors in semi-shade until nights drop to 40°F.

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