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Russian Olive vs Sessile Oak
Quercus petraea
Elaeagnus angustifolia
Sessile Oak is a large, long-lived deciduous tree with a wide, rounded crown. It is an important host plant for many pollinators, especially in its native range. Its acorns serve as a valuable food source for birds and small mammals, providing strong ecological value. It differs from many oaks as the leaves grow on longer stalks, whereas the acorns are stalkless. It can live for hundreds of years, with some surviving over 1,000 years in ideal conditions. As it matures, the tree develops a rugged, gnarled structure that provides heavy shade and a distinctive appearance.
More drought-tolerant than other oaks and does not do well in waterlogged or compacted soils.
Native to Europe and is the national tree of Ireland.
Note: Most Oak species can be considered toxic for many animals.
Russian Olive is a medium-sized deciduous tree that has attractive silvery coloured foliage with small yellow flowers that emit a fragrant sweet smell.
It is drought and salt tolerant, and works well as a shelterbelt species. Russian Olive can also be used to combat erosion.
Note: although Russian Olive is planted as an attractive boulevard tree in many northern areas, in warmer areas it can invade watersheds and is considered invasive. Please do some research and plant the right tree in the right place.
Sessile Oak Quick Facts
Russian Olive Quick Facts
Toxicity: young leaves and acorns toxic to humans and animals when injested
In row spacing: 1.8 - 2.4 m (6 - 8 ft)

