Specialty Gardening: How to make papercrete containers #2, 1 by TreeHeart

TreeHeart wrote:
Haven't seen anyone post on this in a while but I had an idea and was wondering if someone (TomTom perhaps) who has worked with papercrete could tell me if my idea seems feasible.

I am absolutely obsessed with tree ferns but am moving to an area where it is too cold for them to grow. Tassel fern has a very similar growth habit (fronds up to 2 feet long, coming from a central point) but it is evergreen and cold hardy. I am thinking of making a tall, relatively thin pot which mimics the trunk of a tree fern and planting the fern in the top of it. Texturing the papercrete and dying it a dark brown color and encouraging moss growth on it. I would like to build these to have minor bends, as sometimes tree fern trunks will bend.

Is there a maximum height I might be able to make one of these? I was hoping for the tallest to be about 6 feet and the diameter on the bottom to be about 1.5 feet decreasing the top to be about .75 feet.

Thoughts? Thanks!