Japanese Emperor Oak
A magnificent and distinctive deciduous tree of spectacular character, Quercus dentata, widely known as the Daimyo Oak or Japanese Emperor Oak, brings an extraordinary tactile quality and architectural scale to larger gardens. This species stands out from European oaks due to the colossal size of its foliage. The heavily textured, obovate leaves are deeply scalloped with wavy, rounded lobes and can easily reach up to 30cms in length, creating a jungle-like canopy with a prehistoric feel. The leaves unfurl in Spring covered in a soft, velvety down of pale golden hairs, turning a rich, dark yellowish-green by mid-Summer. As the season turns to Autumn, the giant foliage transitions into warm, rustic tones of copper and leathery brown. A fascinating characteristic of Quercus Dentata is its marcescent nature, meaning the dried, papery brown leaves often cling stubbornly to the branches throughout the Winter, providing unique structural interest and a rustling sound in the cold wind before dropping just as fresh growth begins in Spring. This tree grows with a rugged, stout, and somewhat open habit, developing thick, deeply furrowed grey bark that adds a primitive charm to the winter landscape. It adapts beautifully to Irish growing conditions, proving very reliable once established but asking for plenty of open space where its form can expand completely unhindered without any regular pruning or fuss.
Site: Tolerates some exposure
Soil: Prefers deep, fertile, well-drained, acidic to neutral loam; tolerates clay well but dislikes very shallow, chalky ground.
Position: Full sun
Season of Interest: Dramatic green foliage through Summer; warm coppery tones in Autumn; architectural winter silhouette with persistent leaves.
Hardiness: Fully hardy
Height: 40ft (12m) Spread: 33ft (10m)
