There is a "grow shop" near my home, and it's a great source for many hobby growers' needs. They have a warehouse stocking more than twenty kinds of potting medium, and I can sort through the ingredient lists to find one that just suits my bulb and alpine seedlings and other container plants; usually I add some sand or pumice. I also find irrigation items and non-toxic insect treatments there. This week they're advertising ladybugs, and they've added a small selection of native plants. I don't care if my purchases end up in a federal record -- I probably already have one from college radical days in the sixties. Maybe these are "gateway" garden centers that will draw into specialized ornamental gardening some of the young people our garden groups are always worried about attracting? Jane McGary Portland, Oregon, USA At 10:03 AM 7/6/2013, you wrote: >Diana mentioned > > > ...'grow shops' that cater to the cannabis industry. > >Here in Arizona they don't mention that genus. They sell to people >who want to grow >vegetables indoors under high-pressure sodium lights. They are a >constant source of >fresh rooting hormone gel, which was formerly not that easy to get. >Wonder why most of >it comes from Canada? > >Leo Martin