Roses Growing Vigorously but No Flower Buds

Seven Established Roses, Huge Canes, Zero Buds

New May-planted rose already bloomed twice. Established roses have 3+ ft canes from ground, no buds.

Flower buds killed by late frost. New buds forming; will bloom later.
Understock (Dr. Huey) taking over. Dr. Huey is a climber with long canes, semi-double red flowers. If growth is from below graft, it's understock.
Excess nitrogen. Heavy fertilization promotes vegetative growth at expense of flowers. Cut back fertilizer.

Wait and observe. If canes are from graft union, it's understock—dig out. If from above, reduce nitrogen.

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