As a medical laboratory scientist you'll need to be precise, observant and have extensive scientific and medical knowledge. Reviewing education requirements and salary information is a good way to determine if this is the right career for you.
Growth Rate. Dwarf apple trees only grow to be between 5 and 7 feet tall, and can take between 2 and 4 years to produce viable fruit. Semi-dwarf trees take between 3 and 6 years to reach maturity and produce viable fruit.These trees can reach over 20 feet tall.Standard apple trees will not produce fruit until they are between 6 and 10 years of age.tandard apple trees can grow to be 30 feet or taller in height, and take much longer to mature than the smaller varieties of dwarf and semi-dwarf. This long wait time, combined with the height of the tree, make standard apple trees impractical for the purposes of fruit production.
1 Click here for USDA Hardiness Zone map. 2  Apple trees start to bear fruit from when they are 4 or 5 years old until they are over 50 years old. 3  The tree itself can live for over 80 years. 4  Apple trees need a certain number of months of freezing or near freezing temperatures in order to set fruit. USDA Hardiness Zones 3 to 8. 2  Click here for USDA Hardiness Zone map. 3  Apple trees start to bear fruit from when they are 4 or 5 years old until they are over 50 years old. 4  The tree itself can live for over 80 years.