Apple tree rootstock ready for you to graft onto in spring. Select which rootstock suits your needs below, if you want more than one kind then add them to your cart seperately. Grade: Three year old stock with a one year whip cut back to approximately 1m, 10-20mm diameter at 150mm above the ground. These come from our nursery as failed budded trees so they will have a small healed scar at approximately 150mm. The M series of rootstock were originally bred at the East Malling Research Station, Kent, UK See our NURSERY INFO page to learn how we grow our trees, about our fruit descriptions, and all about rootstock and tree sizes. DELIVERY or PICK UP DATE: We pack your plants in the first week of July, August or September. Select your preferred date below.