Why 'Pierre de Ronsard' Takes Years to Bloom: Managing Expectations for Slow-Maturing Climbers

Pierre de Ronsard is notoriously stingy — 3–5 years to mature, small rebloom. Your plant is doing exactly what it's bred to do: build a massive cane framework first.

If it's growing vigorously, it has no energy for flowers. Patience. At 5 years, mine finally bloomed well.