Why JFK Hybrid Tea Rose Buds Won't Open in Ohio

Buds swelling but not opening = thrips or rose midges. Both are tiny, prefer white/pale roses, and damage the bud base.

Test

Tap a bud over white paper. Tiny fly-like insects = thrips/midges. Any rose insecticide (spinosad, neem, pyrethrin) works if applied per label.

Alternative

Spring frost nipped the forming buds. Less likely if other roses bloom fine.

Winter Note

'JFK' prefers warmth. In Columbus (Zone 6a), mound 12 inches for its first winter. If established and thriving, keep your current routine.