A friend gave me a 4' long cane from his garden in May which I planted in a tub with ericaceous soil. It started fruiting the same year, in mid August and I'm still harvesting in September. There are also five new canes (no fruit) which are about 7' long now. Half the leaves are turning yellow. I have no idea if this is a autumn or summer fruiting cane. Anyone? Should I cut all canes to the ground or wait and see?