Apple Flower Tree. Apple trees must reach a certain stage of maturity before they will begin to flower and set fruit. Apple trees grow primarily in US.
Crab apple trees flower for up to 2 weeks starting in mid-spring. Apple tree bloom depends less on the time of year and more on the temperature in your region. Theres nothing like the joy of watching your tree bloom in the spring expectantly waiting for the fruit to ripen and finally eating an apple freshly picked off your tree.
In general trees on dwarfing rootstocks will flower and set fruit at an earlier age than trees on semi-dwarfing or standard rootstocks.
Department of Agriculture plant hardiness zones 3 through 8 depending on the variety. Apple trees grow primarily in US. The apple is a pome fleshy fruit in which the ripened ovary and surrounding tissue both become fleshy and edible. With warmer spring weather the leaf buds unfold and flower buds begin to grow on the ends of the twigs.