Disa 'Flying Tiger' Won't Rebloom: Spike Yellowing After Cutting

Annalee bought a Pui Chin "Flying Tiger" AM/AOS orchid (likely a Disa), cut the spike above the highest node after blooms fell (as with Phalaenopsis), but the entire spike is yellowing from the cut point. The plant is healthy with green firm roots and leaves, moist medium, filtered sun, 79-85°F days, 73-77°F nights, high humidity in Austin, Texas.

Disa vs. Phalaenopsis: Key Difference

Disa orchids bloom only once per spike. Unlike Phalaenopsis, they won't rebloom from the same spike. Remove the entire yellowing spike.

Disa Cultural Requirements

• Temperature: Cool conditions: under 75°F days, above 50°F nights
• Light: Enough for light green leaves; no direct hot sun
• Water: Never allow to dry out; constant moisture
• Water quality: Salt-sensitive; use distilled water if tap water is high in calcium/sodium
• Air movement: Gentle breeze essential
• Repotting: Do it now to ensure fresh mix; use open, moisture-retentive medium

Your temperatures are likely too warm for optimal Disa growth. Cooling is the priority.