The Cadillac of 'moss' poles, this is the professional quality pole used by the best nurseries. Made of tree fern fiber, it's lightweight, super absorbent, and has no ugly mesh surrounding the fiber because it's pressed together and sticks by itself!

Secure plants with plant tape or even large fencing staples, pressed in by hand. They'll sink right in and gently hold the stem to the pole. Attach pole to nursery pot with staples (from the outside) or wire.

When (not if) your plants outgrow their pole, it's easy to attach a second one. Just insert a bamboo garden stake into the pot behind the first pole and attach to the pole with wire. Insert a few bamboo skewers or toothpicks vertically in the top of the tree fern pole (sticking straight up), then press the second tree fern pole down onto the toothpicks and attach to the bamboo stake.  

If that description doesn't make sense, I recorded a podcast that could help: https://www.spreaker.com/episode/episode-251-how-to-stack-tree-fern-fiber-poles--62599327

Poles come in two sizes:

2" x 2" square and 20" tall

1.5" x 1.5" square and 30" tall