|Spartan It's a mystery to me!|
The green apple shown on the right is confined to a sturdy upright branch. I've traced it back and it looks like I missed one of the growths from below the graft union when pruning a couple of years ago.
I'm in the process of asking my apple supplier if he knows which variety it is. He often grafts his own trees, so may have the information to hand. When I asked about rootstock at Marlborough Apple Day recently, the local nurseryman there was rather surprised as they're usually from a crab apple variety, rather than the larger apple I have.
I've yet to do a taste test as it isn't quite ripe enough for picking. I can tell this because it's staying firmly attached to the branch when I gently cup my hand around the apple and lift it up.
The usual advice would be to prune this extra branch out and to rub out any subsequent regrowth. However, my Spartan tree (which I'm training as a cordon) is extremely prolific and assuming my mystery apple tastes OK, I'm tempted to see what happens if I keep it growing with both apples. I'll keep you posted!
Have you experienced anything like this as well? What did you do? Or have you had another gardening mystery to solve this year?