Question: I purchased an apple tree at Home Depot today that didn't have care or information about it and was told to ask you online to get that info because the store didn't have it. The tree is called Apple 'Northpole' and can be grown in a container because of its upright habit. The SKU is 159735 and is 16 inch 5.6 gal./21.3L. It also says Columnar Apple Tree.
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When singular and plural spellings differ, as in peony and peonies, try both.