Topiaries are common in formal and informal gardens, at shopping malls, amusement parks and inside homes. They can have whimsical shapes like dancing hippos or full-sized trains, or they can have formal shapes such as mazes, spheres or pyramids. You can sculpt topiaries from different plant materials. Evergreen shrubs, ivy and some trees are just a few varieties of plants that can be sculpted into topiaries.
Fill a container with floral foam. Place a topiary form in the container. Cover the floral foam with sphagnum moss to hide it.
Wearing gloves, soak sphagnum moss in a bucket of water. Add a few drops of dish soap to help the moss absorb the water. Keep it in the water until it's completely saturated.
Squeeze out any excess water from the moss. Fill the frame with damp moss. Make sure that the moss is tightly packed in the frame. You should no longer be able to see or feel the wire of the frame. This can take awhile.
After the frame is properly filled, tightly wind floral wire around the frame. This keeps the moss in place and doesn't let any fall out.
Make holes in the sphagnum moss with a screwdriver. Put one starter plant into each hole and cover the soil with more damp moss. Keep filling the holes with plants. Make sure you leave room for the plants to spread. Use greening pins to attach ivy runners to the sphagnum moss to help them root.