A large evergreen tree with an attractive natural shape which can also be clipped to create a durable dense hedge the holm oak produces glossy leathery green leaves and masses of yellow catkins in spring followed by shiny acorns through summer and autumn tough and easy to grow quercus ilex is perfect for even the most exposed coastal gardens and is drought tolerant once established the spring pollen and dense evergreen growth also make holm oak fantastic for attracting wildlife to the ga