Other suggestions include - not fertilising trees infected with root rot or you will benefit the pathogens more than the host. If roots must be cut, cut with sharp tools. When transplanting, always remove broken and crushed roots. When storm damage causes a tree to bend so much that the roots on one side are splintered, sever the root on the tree side of the splinter. Be aware that severing roots can weaken the tree.
Some seeds remain viable for only a short time after the fruit falls.
Other remain viable for years, decades and even centuries. Arctic lupine seeds from frozen tundra soils have been successfully germinated. Radioactive carbon dating of the seeds revealed that they were at least 10,000 years old. The AGHS proudly presents three thematically linked lectures offering you a unique opportunity to hear from people who were actively involved or associated with the introduction of Australian Native Plants into the nursery trade and urban landscape in Victoria from the late 1950s. Bill's work has included landscaping and revegetation of sites for large companies and planting designs for private gardens, including some for Ellis Stones.