Q.replanting apple tree
Can I plant a new apple tree where I have taken out an old tree? The old tree was very small and had not grown since putting in, probably lack of water. The old tree was a Windsor Red. The new one will be Scrumptious.
I would first do a soil test to determine if the soil was why your tree did not grow.
Your County Extension Office can help you with a soil test for a small fee.
You can make any amendments to the soil prior to planting a new tree.
Here is a link to help you locate your nearest office.
https://www.gardeningknowhow.com/extension-search/
These links have more information for you.
https://www.gardeningknowhow.com/edible/fruits/apples/apple-tree-planting.htm
https://www.gardeningknowhow.com/edible/fruits/apples/no-fruit-on-apple-trees.htm