Narrow is the whole point of this one. Raspberry Spear is a columnar crabapple, holding its branches tight and upright rather than spreading, which makes it useful along driveways, in slim side beds and as a repeated vertical in courtyards where a rounded tree would never fit.Spring brings a heavy flush of pink to red blossom along the stems, followed by small deep red fruit that hangs on well after the leaves drop and gets worked over by birds. It is deciduous, so expect bare structure through winter, and it needs a proper cold season to flower and fruit reliably.Things to watch: Grafted plants sucker from below the union. Rub those shoots off early or the rootstock takes over and the narrow habit is lost. Humid summers bring scab and powdery mildew. Full sun and open air movement do more good than spraying. Fallen fruit stains paving, so keep it out of the middle of a paved courtyard. Choosing a sizeThis plant is available in 3 sizes, from 300mm up to 400mm, priced from $129.00 to $239.00 per plant. The size shown is the pot the plant arrives in, which is the rootball, not the height of the plant. Every size here is established stock rather than a starter plant, so this line is intended for immediate effect rather than for growing on. Not sure which to choose? Read our guide to choosing a tree for a small backyard.