5#狗拿耗子 V* F" X0 m* m5 V& O3 |' A7 HBoth top soil and manure (organic fertilizer-waste matter produced by cattle/sheep) are available in bags at Homedepot, Rona, Superstore and so and so and so........
As what I know, commercial potting soil is very often sawdust+peat moss and more preferable for indoor pot growing since it has a more sterile composition in comparison to topsoil.