Why BMI Is a Crock, in Pictures. So, the Guess The Rotund's Height and Weight game gave me an idea. (Oh, and hey, if you want to see a scatter graph of the results, there's one here now.) I talk a lot about how BMI is bullshit, but we all know talk is cheap.
As suggested in the above links (Thanks! ShellaB, for posting those links -- The first one was especially useful.), you can use monofilament plastic fish line to tie the fern to the basket, if needed. I stuffed my staghorn's basket with a combination of leaf litter, spaghnum, and Spanish Moss.
If you measure to where you want the bottom of the fern to hang, subtract the fern height from your measurement. Cut two lengths of chain that are twice the length of this measurement, plus about 6 inches.Select a strong tree branch that is capable of supporting the staghorn fern's weight.se chain connectors to attach the ends of these four chain lengths to the chain links in the chain circle. When the fern hangs in the tree, the chain circle acts like the top rim of a basket, while the four swagged chains form the basket itself that prevents the fern from falling through to the ground.