Description Sorbus Joseph Rock Joseph Rock is a highly decorative rowan tree, known for its stunning autumn colour and clusters of long-lasting yellow berries. In spring, it produces frothy white flowers that attract pollinators, followed by vibrant foliage through summer. Come autumn, the leaves turn a fiery mix of red, orange, and purple, perfectly offsetting the golden berries that persist into winter, providing food for birds. Supplied as a bare root tree (8ft in height, 6/8cm girth), available November to March/April, this rowan is an excellent choice for Irish gardens, thriving in a range of soils and offering year-round ornamental value.