A trellis is a framework of thin strips of wood or metal that creates a lattice pattern, used to support climbing plants like roses, ivy, or grapevines. Picture a flat grid of crisscrossed strips attached to a wall or standing in a garden: as vines grow, their tendrils wrap around the strips and climb upward, turning the trellis into a living wall of leaves and flowers.

Gardeners use trellises to help plants grow in beautiful, controlled ways. Without support, a climbing rose would sprawl across the ground, but trained on a trellis, it grows upward and outward in an elegant pattern. Vegetable gardeners often use trellises for beans, cucumbers, and tomatoes, which makes harvesting easier and saves garden space.

The lattice design of a trellis serves two purposes: it’s strong enough to support heavy vines, yet open enough to let air and sunlight through. You might see trellises covering arbors (arched garden walkways), decorating walls, or creating natural privacy screens between yards. Some trellises are simple and practical, while others are ornate garden decorations even before the plants begin climbing.