Hawthorn

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Hawthorn is large prickly deciduous shrub or small tree to 10 m that was previously grown for hedges or cheap barrier fences. These plants form a dense, impenetrable thicket and can dominate the under story of bushland. Now prevalent along roadsides invading natural bushland and unproductive farmland. There are thorns up to 2 cm long on the stems and flowers are pink or white and copious bunches of scarlet red fruits grow along the branches in late summer and autumn.

Due to quick spreading techniques, hawthorn stands can easily spread far beyond intended planted zones into native grasslands, woodlands, forested areas and pastures. Thickets disrupt the grazing capacity of stock as the plants are dense and the prickly thorns make them uncomfortable to be around.  

Spreads by seed. Each tree produces thousands of red fleshy fruit. Berries are eaten by birds and small mammals and seeds are dispersed in droppings. Seeds may be spread by machinery and car tyres.

This tree is problematic in the environment. Since a single tree produces thousands of berries, it is not practical to remove them. Consider removing existing trees and replacing with a recommended alternative. 

Seedlings and young saplings can be pulled or dug up when soil is moist, but roots quickly become deep and stout and sharp thorns are present even on seedlings. Mature trees have deep and extensive roots so digging is labor-intensive and results in considerable soil disturbance if all of the roots are removed. Hawthorn often sprouts from the stump, so removal by cutting alone is not usually effective.