[header] How to dwarf an apple tree [title] Do the first cut as soon as the tree has been planted. [step] Pruning the tree while it is still young and growing will ensure it takes to dwarfing. Try to do the first cut on the tree soon after it is planted at the end of winter. 
[substeps] Most apple tree varieties will take to dwarfing well. You may want to consult with a grower at your local gardening center or horticulture center to confirm the apple tree variety you have will be good for dwarfing.