Lammas growth declines with the age of the tree, being most vigorous and noticeable in young trees. It differs in nature from spring growth which is fixed when leaves and shoots are laid down in the bud the previous year. The lammas flush is free growth of newly made leaves/needles throughout the tree.[2] One or more of the buds set in the Spring on the ends of terminal and lateral stems will break, and begin to grow, producing a new shoot.[3]