リッキー 4 I planted a vine on a round 25 cm pot. I wanted to set up a nearby trellis for it to cling to and grow on. Search recommendations suggested an obelisk-type trellis. This trellis is made of metal tubing and plastic connectors (rings and joints). It seems sturdy enough if you don't have to move the plant or pot around. In such case, you will need to secure the trellis.