an orchid growing on a tree fern ball has a unique look

 Tree Fern Ball
     These are carved from the trunk of South American tree ferns. Orchids and other epiphytes grow beautifully on tree fern plaques and balls. They are able to send their roots through the fibers and attach themselves throughout the substrate to benefit from the evenly distributed moisture and fertilizer within You are using dilute fertilizer in your water, right? Growing your orchid on tree fern allows it to grow more like it would in nature.

There is a bit variation in size and shape.