Some plants benefit from growing inside some kind of exterior support system. These plants often produce heavy blossoms or fruit or are a trailing vine variety that grows by clinging to supports. You can build such structures out of small, thin tree limbs. Arranging the branches in a tepee shape will create a supportive trellis for the plant growing inside the structure. To make a trellis for a house plant, use shorter limbs than you would for an outdoor plant.
Drive each thin 4-foot long tree limb into the container with the house plant. Space them evenly around the outside edge of the container.
Tilt the limbs in toward each other. Allow them to cross at the top so that 6 inches of each limb sticks out over the top of the point where they cross.
Heap additional potting soil around the limbs where they come out of the ground, tamping the soil around it to hold in place.
Wrap garden twine around the crossing point, tying the end around one limb with a double knot and leaving 6 inches of twine hanging down in a tail. Wrap the other end several times around the limbs. Weave the twine in and out of the limbs instead of just wrapping around the exterior for the first few wraps, then finish by wrapping around all limbs four times, tying the twine to the 6-inch tail in a double knot and cutting the twine.