Sessile oak
Quercus petraea 路 Fagaceae 路 also Durmast oak, Irish oak
The oak of hilly, wetter western and northern Britain and Ireland, growing 20 to 40 m with a straighter trunk than English oak and stalkless acorns. It is the national tree of Ireland and the dominant tree of Atlantic oakwoods. Like English oak it supports hundreds of insect species, so it is a mainstay of upland native woodland planting.
Broadleaf, loses its leaves in winterSlow growingFull sunModerate water
Where it stands
Care
Plant small bare-root trees in winter with tree guards; water through the first two summers on dry sites. Prune lightly in late winter if at all. Threats are acute and chronic oak decline, and oak processionary moth where present in south-east England.
Benefits
ShadeWildlifeBirdsPollinatorsLong livedStores carbon wellStorm resistant
Good for
parksTimberReforestationYard shade