Common holly is a hardy tree or shrub, capable of surviving in most conditions, except where it is extremely wet. Will grow in practically any soil or situation, and makes for a dense hedge, It can also be mixed with other native hedging species to create a diverse hedge. Plants are either male or female, and only the female plants bear berries which appear from late autumn to mid-winter. Ilex Aquifolium irritates skin. And is toxic to Humans & Pets.