River Sheoak is a highly successful, tall, narrow evergreen tree that will grow on many various sites, as long as waterlogging is not constant. It will survive on heavy clay soils or sands . Typically it grows to between 15-20m tall, is up to 6m wide and forms a strong, buttressed trunk. The root systems are vigorous and matted, and it can be difficult to grow turf or other plants under these trees.
River Sheoak will form a picturesque, shaggy tree within 10 years of planting, with the elegant, strongly pendulous branchlets to 15cm. It looks best when planted in groves, clumps or as a screening plant. It responds well to pruning, and can be coppiced each 5+ years to form a dense screen.
Although it is a valuable tree for nature-like landscapes. It is highly successful either as a clump-growing display tree or as a screen. (source: metrotrees.com.au).
Genus - Casuarina
Species - Cunninghamiana
Common name - River She-Oak
Pre-Treatment - Not-required
Hardiness zones - 9 - 10
Height - 60' / 18 m
Plant type - Medium Tree
Vegetation type - Evergreen
Exposure - Full Sun, Partial Shade
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Light (sandy), medium (loamy), heavy (clay), well-drained soil
Water requirements - Average Water
Bloom season - End of spring
Leaf / Flower color - Green / --
Soak seeds for 24 hours in hot tap water.
Sow 5 mm (1/4") deep inside in pots or in a greenhouse. Tamp the soil, mulch the seed bed.
Prick out the seedlings into individual pots when they are large enough to handle. If sufficient growth is made, it is possible to plant out in the summer, otherwise overwinter them in a cold frame and plant out in late spring of the following year.
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