Always choose healthy, well-grown plants. Plant after autumn rains when the soil is moist and warm, allowing trees and shrubs to become established before winter. Planting success is often improved on clay soils by adding gypsum and extra topsoil and forming raised beds. Incorporate coarse sand, bark and compost to improve soil structure. Before planting, ensure that the root ball is saturated and remove planter pot with minimal root disturbance. Trim any broken roots or branches and plant at the same level as in the container. Long term, slow-release fertilisers may be added at this stage. As soil is placed in the prepared hole, tread firmly to bring soil in close contact with the root ball. Water thoroughly, making sure that moisture penetrates to the depth of the root ball.
Tall plants and those in windy positions require staking to stabilise the root ball until established. Position the stakes in the hole before planting and place the plant between them. Use wide ties that hold securely without chafing. Tie firmly but allow room for the trunk to increase in girth. This allows the plant to move a little in the wind, encouraging the development of a strong root system without the risk of chafing or root damage.