However, just like shoot growth of the stem, there is no diameter growth of palm roots. Descending roots are for anchorage. Different parts of trees grow at different times of the year, and the pattern varies by species and climate. In one typical pattern trees begin with shoot growth in the sprlng, followed by trunk diameter growth and then root growth. However, this growth can occur in any order, and root growth may be year-round or have two growing periods per year.
Young trees grow longer in the growing season than older trees.
Length of active growth is determined by temperature, day length, and water. Tree species have a wide range of lifespans. The way trees grow affects their form. Apical dominance means that the apical blld at the tip of the stem controls and inhibits growth of lateral buds. Most palms only have one apical bud.