Answer: I can't tell for sure about your trees but if they are less than 4' tall now, they are probably semi-dwarf trees. Standard trees will be 6-8' tall when first offered for sale. Semi-dwarf cherry trees have many advantages to standard sized cherry trees. First of all, semi-dwarf cherry trees are smaller. This means that they take up less room in a garden. The reduced size of a semi-dwarf cherry tree makes it easier to prune, spray and harvest fruit. Additionally, semi-dwarf cherry trees will produce fruit earlier than standard cherry trees, often only three years after being planted, as opposed to as many as ten years.
Semi dwarf cherry trees usually grow 6-8 feet tall at maturity and about 6' wide. You'll want to space your trees so there is plenty of room between them to promote good air circulation. A minimum of 8 feet apart should be fine for your new trees. Enjoy!
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