I’ve been trying tot grow the Wichurana rambler Paul Noël for some years now (multiple plants). Each time it forms a reasonable branch that goes up to more than 4 feet it eventually dies back later in year.
Now I notice the same with an OP of Léontine Gervais (Barbier Wichurana rambler). It is 4 years old. It forms a lot of small branches from the roots. I have cut all branches but 4 strong ones this spring. They grew up to 5 feet and now they also die back. It is very frustrating. I just want to see it bloom once, so I can decide to cull it or not.
Maybe this die back is a trait of Wichurana species roses? It doesn’t seem to be related to any disease or pest. Maybe my sandy soil? We had enough rain, it wasn’t due to drought. Certainly not due to frost or cold.
Any ideas or experiences with Wichurana ramblers?
Sidenote: my Léontine Gervais does very well and hasn’t got this problem.