Remove the hanging chains from one of the wire baskets with pliers. The wire basket without chains will be the bottom of the succulent ball.
Soak the moss in a bucket of warm water.
Line the baskets with sheets of moistened moss, overlapping the sheets slightly to help retain the potting mixture.
Fill both baskets to the top with the commercial succulent potting mixture.
Cover the top of the basket that no longer has chains with a piece of the cardboard. The cardboard will keep the soil from falling out as you invert it. Holding the cardboard in place, flip over the chainless basket and place it on top of the other basket. Line up the edges of the baskets.
Hold the baskets in place and slowly slide the cardboard out from between them. You may find it necessary to recruit an assistant; an extra pair of hands will make this step much easier.
Wire the two halves together securely, using pieces of the 20-gauge wire. Wrap the top edges of both baskets together where they meet at the “equator” of the succulent sphere.
Wrap the outside of the sphere with nylon fishing line to keep the moss from falling through the wires. Do not completely cover the basket with the fishing line; leave spaces in which to plant the succulents.
Place the wired orb on top of the terra-cotta flowerpot while you plant it. Orient the succulent ball so the half with the chains is on the bottom and the half without the chains is facing upward. The half without the chains is the bottom and should be planted first. You will invert the ball after the succulents have been planted.
Make a hole in the moss lining with the ice pick or another sharp object. Insert the roots of a succulent in the hole. If you are using cuttings, insert the cutting into the prepared hole and firm the soil around it. Leave space between each succulent so they have room in which to grow.
Push “U”-shaped pieces of florists wire around the plants to hold them in place until roots form.
Invert the ball and hang it from a temporary hook over your work table while you insert the plants in the top half, following the same method as when planting the bottom half of the ball.
Water the ball seven days after planting it. The lack of water encourages the succulents to begin sending out roots. Submerge it in water and allow it to sit for about 10 minutes. Let it dry out thoroughly between waterings.