Can I keep a staghorn fern in a four-inch plastic pot?
Staghorn ferns prefer to be planted on a slab of wood. You can find your own slab or buy one at a garden center. Wrap the wood with sphagnum moss and attach the fern to this, making sure the roots are covered. Secure them in place with a thin wire. Keep the fern in the shade and water daily until it takes hold. Feed with 10-10-10 fertilizer or any houseplant food.