My soil is acidic, what can I do to improve the quality?
The Muskoka region does have a lot of evergreen which is a contributing factor in making the soil more acidic. To neutralize the soil you can use horticultural lime or demotic lime, this does have to be applied regularly to maintan a proper ph. The Ph scale goes from 1 to 14 1-7 being acidic and 7-14 being alkaline. You can test your soil with a ph test kit.
All my gardens are sand. How can I improve the soil quality?
Proper mulching will help tremendously however it is not a quick fix. If you have an abundance of sand you will need to continually add topsoil, manure and compost. When planting dig the holes 3 to 4 times the size of the pot and add a generous amount of organic matter and starter fertilizer.