My local Wal-Mart is selling Shade Cloth, "Coolaroo" Brand, available as either 70% or 90% shade shade factor. Coolaroo claims at least 10 years of UV resistance. I believe that Coolaroo is mostly an Aussie brand (manufactured in China and sold worldwide), so it is usually promoted as protecting people from excessive UV exposure. I really don't understand why Aussies worry about skin cancer; I just thought that Crocadile Dundee would just pull out his 12 inch knife and, all by himself, dig out any funny looking moles saying, "Ah melanoma, no big deal."! The late Crocadile Hunter (may God have mercy on his soul) would just hold out his kid in front of a crock saying "Here crocky, here crocky, bite out that melanoma, that's a good crocky, that' it". And any suburban Aussie, would just rub their pet toxic cane toad above any melanoma. Oops, I digress from the topic of this post. Sorry for the American stereotypes of Aussies. The Coolaroo display box also sells accessories, such as a sewing kit with a roll of black UV-resistant (my assumption) cord plus a special sewing needle. Shade cloth is available in two forms: woven or knitted; the Coolaroo product is knitted and does not fall apart if you cut it. I purchased a roll of green 90% shade. I attempted two methods of fabrication: sewing or silicone glue (caulking). Using the Coolaroo sewing kit with their 90% shade cloth is quite difficult. Both their cord and needle are just too big; in contrast, their needle and cord should be fine for the 70% shade cloth. Sewing the 90% shade with a smaller needle and a more light weight cord, or using an aluminum wire, are alternatives that may work. Using sticks of hot glue melt may work; but the sticks carried by Wal-Mart are not resistant to UV, as far as I know; I have not tried them for that reason. I also fabricated cylinders by pumping 1 or 2 strips of silicone caulking onto a two inch wide strip of the fabric, and pulling the fabric around over the silicone caulking and pushing down to form a 2 inch wide glued seam. There was plastic film underneath the seam to protect the garage floor from silicone. I pushed a seam roller (ie., those used for wall paper) over the glued joint. The pressure from the seam roller causes the caulk to ooze out from both layers of shade cloth- the two strips of plastic film intercept this ooze to form a thin layer of silicone on both outer surfaces of the seam. I soon remove the top plastic film so that air will induce the silicone caulk to cure. Once the silicone caulk cures, I remove the second roll of protective plastic film. Note that silicone does not glue the polyethylene (or polypropylene) shade cloth per se. Rather, as the silicone oozes around the plastic threads, a continuous matrix of cured silicone forms a mechanical layer that physically traps the two layers of shade cloth together. Gee... I'm going to have to photograph this gluing process to explain it. Be careful with the silicone. Some tubes, especially those for bathtubs, contain a biocide to kill mildew; who knows what that will do to plants or those that eat the plants. Silicone, as far as I know, is inherently resistant to mold; but silicone is not inherently toxic to mold, so mold can grow on top of silicone. Nothing prevents mold from growing on top of silicone in a bathtub, unless controlled release biocide is added. Silicone for aquariums would be best, but may be pricey. Since Wal-Mart didn't have the Aquarium Silicone; I bought the "all purpose" tube for $2.65, and a cheap caulking gun. The silicone method is the easiest method of fabricating cylinders of shade cloth from pieces cut from the roll. Now I have to figure out how to fold one end of the cylinder into a bottom of the pot. Either that, I cut out a circle and attach it to one end of the cylinder. Stay tuned for further adventures with shade cloth.

Bumped.....I've been doing some surfing to look at pics of my new hosta acquisitions (specifically Vanilla Cream) when I ran across this thread. It was posted a week before I joined the forum...it's the first glimpse for me of a "root control bag" meaning a "spin out", I presume? So THAT'S what these bags look like! Interesting..looks very hefty. Paul, I've never heard of, much less seen a Royal Chameleon. It's gorgeous. I'm wondering how it looks today. Psssst, any chance of seeing that? Thnx..:-). I'll never tire of saying how beautiful your plants are....when I visualize my gardens and how I want them to look, I think of yours. What an inspiration!

Lots of beauties there Paul. I was looking at a patch of Solomon's Seal tonight thinking you have to go. It's growing like a weed. Time to relocate it again!!! Can't stand to kill anything, unless it's a slug. Just wait another year or two, you won't have a space in between those hostas.

Would that be "Nursery Management" or "Nursery Mangement & Production" I couldn't find an online mention of "Nursery Manager" The former has had 2 articles that mentioned either 'grow bags' or 'root control bags' One where it was mentioned in passing as being included as part of 'container grown' and one where it was part of a grower profile. The later is one of these ad supported trade rags that doesn't seem to have an online version. American Nurseryman had zero articles root control bags as a phrase, and 9 irrelevant articles that included all three words. I've found lots of articles comparing RCB to pot production. As I track down authors, I'm asking them if they have compared the different root bag technologies.