Jun 04, 2011· ‘Pierre de Ronsard’ is a large-flowered climber, reaching heights of 10+ feet and is listed as being hardy to zone 4 or 5, but from what I’ve read from other growers, it might be best to list it as hardy to zone 6. We grow ours in a south-facing position up against the house so have created a pleasant little micro-climate for it that ...
