When is the best time to plant leylandii and other evergreen shrubs?
The best time to plant is between September and March but container-grown plants can be planted at any time of year provided they are given sufficient water. If you plant between September and February, you probably won’t need to water them unless you want to increase the amount of growth you get over the summer period. If you plant between April and September, then you will need to water the soil around their roots twice a week or more to ensure the roots do not dry out while they are getting established in the soil.