My mix drains just fine. Ive worked with plants for almost my whole life, and have worked in plant nurserys with some very creditable people and peat and verm/perlite is the mix that we used to start seeds and cuttings of hundreds of plants. Orchid mix is for orchids and sometimes has cedar in it so i wouldnt use it. Plus orchid mix is just chunks of bark, charcoal,and other randomness thats way to big for your average plant to grow in. Maybe a phalaenopsis mix but even thats a little chunky.