My autumn rasps are fruiting well but many of my summer ones have also started to fruit! I am not sure what has happened but am worrying that it will affect next years summer rasps. Thanks
Have they been in a couple of years or more and planted fairly near each other? If so I suspect that the Autumn fruiting ones may have sent underground runners and are coming up in between your Summer fruiting ones - I had them appear over 20 feet away. It's also not unknown for them to be accidentally mixed up by the supplier if they are fairly new canes.