Hibiscus Buds Not Opening; Daylily Buds Browning: Need More Info

Insufficient Details for Diagnosis

A gardener loves plants but can’t get hibiscus buds to open (they stay as buds) and a peach daylily’s buds open then turn brown. They sprayed Sevin. The responder asks for location, hibiscus type (hardy vs. tropical), foliage condition, and past bloom history.

Why More Info Is Needed

• Hibiscus bud drop can be due to thrips, gall midge, water stress, or temperature extremes.
• Daylily bud browning may be botrytis, thrips, or heat stress.
• Sevin (carbaryl) harms pollinators and beneficials; not recommended without ID.

Next Steps

Provide the requested details for a targeted answer. In the meantime, stop broad‑spectrum insecticides.