A lattice and trellis are 2 different but highly beneficial additions to your gardens. A lattice works as a crisscross decorative element that can also support climbing plants. A trellis however is formed from a lattice and is usually used for climbing plants. By installing a lattice and/or trellis in your home, both inside and outside it, you not only gain a support structure for your climbing plants, but also an extra dimension of beauty. If you choose an arched trellis, it can be covered with plants and used as a gateway for your home.