Eucalyptus agglomerata grows to a height of 40 m (100 ft) and has thick, fibrous, stringy bark, usually colored grey over reddish brown.
Flowering mostly occurs between October and January that are white to cream-coloured, and crowded, flattened hemispherical fruit.
The climate for this species is mostly warm humid with rainfall ranges between 700 mm to 1500 mm per year.
Blue-leaved stringybark is often found on gentle to moderate slopes in the coastal and tableland areas, but it also grows on steep slopes in the Blue Mountains.
The soils show a range of types, some of poor quality but mostly of good levels of sub soil moisture.