Quercus castaneifolia (Chestnut Oak)

How to grow Quercus castaneifolia in NZ

Quercus castaneifolia, or Chestnut-leaved Oak, grows well in NZ in full sun and fertile, well-drained soil. This large, hardy tree is tolerant of a range of soil types and conditions once established. Water regularly during the first few years to encourage deep root growth, then only in prolonged dry periods. Apply a slow-release fertiliser in spring to promote strong growth, and mulch around the base to retain soil moisture. Prune in late winter to remove damaged or crossing branches.

Quercus castaneifolia (Chestnut Oak) care tips

Water young Quercus castaneifolia trees regularly during dry periods to establish strong roots, then reduce watering once mature. Mulch around the base to conserve soil moisture and suppress weeds, keeping mulch clear of the trunk. Feed in spring with a slow-release fertiliser to support healthy growth. Prune in late winter or early spring to remove dead, damaged, or crossing branches, and protect young trees from strong winds until well established.

Tree size, spacing, and growth rate

Quercus castaneifolia typically grows 20–25 m tall and 12–15 m wide with a moderate growth rate. Space trees at least 10–12 m apart to allow for their broad canopy and healthy airflow.

Why buy Quercus castaneifolia (Chestnut Oak) from The Plant Company?

Buying Quercus castaneifolia (Chestnut Oak) from The Plant Company ensures you receive a healthy, well-established tree grown to thrive in NZ conditions. Our trees are carefully nurtured for strong roots, robust growth, and excellent form, giving you the best start for long-term success. We provide quality assurance, expert planting advice, and convenient delivery, making it easy to add this impressive, long-lived oak to your landscape with confidence.