Common Oak (Quercus robur)

Common Oak is one of Ireland’s most important and iconic native trees, valued for its longevity, wildlife significance, and deep cultural heritage. A slow-growing but ultimately majestic species, Oak can live for several centuries, becoming a defining feature of the landscape over time.

In mid to late spring, Oak produces small flowers, followed by acorns that ripen in autumn. These acorns are a vital food source for birds and mammals and play a key role in sustaining woodland ecosystems. As a deciduous tree, Oak also delivers strong seasonal interest, with fresh green leaves in spring and summer before turning rich autumn tones.

Supplied as bare-root whips between 40–80cm in height, young Oak trees establish well when planted during the dormant season. While Oak will eventually grow large, its slow, steady growth makes it suitable for planting in both larger gardens and open landscapes where it can be allowed to mature naturally.

Planting an Oak is a long-term investment - not just in your garden, but in Ireland’s future natural heritage.

Why plant Common Oak?

• Exceptional biodiversity value – supports more wildlife species than any other native Irish tree

• Long-lived native tree – can live for hundreds of years, becoming a true legacy planting

• Food for wildlife – acorns support birds and mammals in autumn and winter

• Carbon storage over time – large, mature Oaks play an important role in long-term carbon capture

• Cultural significance – deeply rooted in Irish history, folklore, and woodland tradition

• Ideal for landscape planting – well suited to gardens, farms, parklands, and rewilding projects

Planting guidance

• Supplied as bare-root whips (40–80cm)

• Allow a minimum of 2 metres between each tree at planting

• Plant in free-draining soil in full sun or partial shade

• Best suited to locations where the tree can mature over time