How to get bigger raspberries
This year my Taylor raspberries are smaller than usual. I planted them 4 years ago from bare root canes. I actually fertilized them a little in early spring with a balanced organic fertilizer - first time I've done that.
I did prune them in early spring, but perhaps I left too many canes? Does water stress affect berry size? at what point? I think they've been well watered this year but just wanted to see what other variables I might check. Can it be a soil problem / mineral deficiency?