Native trees and shrubs include oak, ash, willow, birch, Rowan, wych elm, alder, hazel, hawthorn, blackthorn, bird cherry, gean, crab apple and elderberry. Many trees, some, like yew, perhaps native to the area, have long been planted by man. Clachan House to Rosneath church is a prime example. Some are probably not native to the area but have been widely used, for example beech, sycamore, horse chestnut and lime. Rhododendron has become a scourge, rampaging out of control.
Palm trees occur, but tend to suffer and die in the occasional very hard winter.