Forest Sheoak (Allocasuarina torulosa)


Allocasuarina torulosa, commonly known as Forest Sheoak, is an evergreen tree native to Australia. It is growing from the Illawarra region in New South Wales and the Cape York region in Queensland. It is commonly found along rainforest margins in the Great Dividing Range, typically on coastal foot slopes, hills, plateaus and plains in open woodland. It is prized by woodworkers and woodturners as a rare and exotic timber, often used in wood turnings, knife handles and other specialist items.

Here is some helpful information for growing this plant:

Tree Height and Spread: Allocasuarina torulosa can grow up to 9 meters in height and spread to 6 meters. It has a narrow, upright growth habit and a dense canopy of foliage. The tree can live for several decades and is known for its attractive bark and foliage.

Preferred Soil Type: Allocasuarina torulosa prefers well-drained soils that are sandy or loamy in texture. It can tolerate many soil types, including clay soils, but will not grow well in waterlogged or poorly-drained soils. It prefers slightly acidic soils to neutral, with a pH range of 6.0 to 7.5.

Soil pH: Allocasuarina torulosa prefers slightly acidic to neutral soils, with a pH range of 6.0 to 7.5. It can tolerate slightly alkaline soils but will not grow well in highly acidic or alkaline soils. It is essential to monitor the soil pH and adjust as needed to maintain the appropriate conditions for growth.

Light Requirements: Allocasuarina torulosa is a plant that requires full sun to thrive. It will not perform well in shaded areas or less than 6 hours of direct sunlight daily. It may benefit from some protection from the hottest part of the day in areas with hot summers.

Water Requirements: Allocasuarina torulosa is a drought-tolerant plant that can survive with little water once established. However, it will perform best if it receives regular watering during the growing season. Watering the tree deeply and infrequently is essential rather than giving it frequent shallow watering. This will encourage the roots to grow deep and help to prevent the soil from becoming waterlogged.

Fertiliser Requirements: Allocasuarina torulosa is a plant that does not require much fertiliser. It can be fertilised once or twice yearly with a balanced, slow-release fertiliser. However, over-fertilisation can lead to excessive growth and reduced stress tolerance. It is best to avoid fertilising the plant during winter when growth is slow.

Pruning Requirements: Allocasuarina torulosa requires little pruning, but it may benefit from occasional pruning to maintain its shape and remove any dead or diseased branches. Pruning should be done in the early spring before the tree begins to put out new growth.

Pests and Diseases: Allocasuarina torulosa is a relatively pest-free tree. However, it can be susceptible to borers and other pests if stressed due to drought or other factors. To prevent this problem, providing adequate water and avoiding over-fertilisation is essential. Forest Oak can also be susceptible to fungal diseases, such as Phytophthora and Amarillira, which can be controlled through proper pruning and soil and water management.

In conclusion, Allocasuarina torulosa is a hardy, attractive tree well-suited to various growing conditions. Proper care can provide a beautiful, long-lived addition to the landscape for many to come. By providing well-drained soil, full sunlight and avoiding over-fertilisation, you can help your Forest Oak tree thrive and offer a beautiful and natural addition to your property.

Weight 3 kg
Dimensions 43 × 14 × 10 cm
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2 to 4 metres, 4 to 6 metres, 6 to 8 metres, 8 to 10 metres, 10 to 15 metres

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