Rhizo 1....yes, they have a drain hole. My first pot mold was a two inch round mold. Currently I am having a 4 in. square mold built. Lg, above ground longevity was the first thing I battled....they last just fine above ground...now...lol....it took me awhile to figure out how to give them longevity. I have always planted whatever I had in less than two months, but I think realistically they would hold form until three. As I was trying so hard to push for longevity, I am currently adjusting the formula to make the matrix a little less tight so water will come through the pot wall a little better once they are planted. Believe it or not, there seems to be many aspects to something as simple as a biodegradable pot. As I was saying, it is a slow process because when you make a change, then it means testing the change you made...which is another 4 to 16 weeks to then speculate on the results. I have tested them below ground against Jiffy pots and Cowpots. If I could figure out how to post pictures, I would post the results. Long story short, they degrade better than both of those others. When I pulled the plants up, the pot form of the Jiffy and Cowpots still had there shape, but there was just a few dime size fragments of the alfalfa pots left. Cowpots advertise the best pot, but we could tell no difference above ground between the three. Matter of fact, plastic I would say, beat them all..not with measureable significance, but visually. As you can tell, I enjoy talking about them because it's fun for me....kind of like the anticipation of looking at the garden plants each day searching for new fruit. thanks for the comments.

Rabbit sized alfalfa pellets are small enough to go through a broadcast spreader but not a drop type spreader. They look like this. I call them rabbit chow just so people don't get the horse cubes. Rabbit sized pellets are slightly larger than the stem of a Q-Tip. Horse cubes look like this. These things are about the size of your thumb. Once you scatter the pellets, moisten them. They will soak up the water and start to swell up. They will swell to about twice their size and then disintegrate into small, flaky, particles. This keeps the birds from taking them away.

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There is a great feed & seed in Atlanta! Standard Feed & Seed: 2339 Brannen Road Southeast, Atlanta, GA 30316 You can not get the corn gluten as meal, you need to buy it pelletized and it will break down sufficiently with some rain. I used it. It's working great. They have various sized bags of alfalfa, they also sell 3 sizes of grit which is good for a) moles/voles, b) rooting stuff c) rock gardening, troughs and plants that need exceptionally well drained, free running soil. I have not asked about the rest of the stuff you are looking for. Another place to buy lots of really nice ammendments etc. is Atlantis Hydroponic Supply. They sell things like large bags of pearlite, large containers of fish and kelp fertilizers and a large variety of rooting hormones. There are three locations in Atlanta and one I think in Athens. GGG