What to Grow on a Trellis? | Crops That Climb

A trellis lets you grow vegetables, fruits, and flowers upward, saving ground space while boosting air flow and yields for climbing plants.

Growing up instead of out opens more garden real estate, makes picking easier, and keeps foliage drier to reduce disease. The trick is picking plants that actually want to climb—vining cucumbers, pole beans, indeterminate tomatoes, and flowering vines like clematis all thrive when given vertical support. Here is exactly what grows well on a trellis and how to set each up right.

Best Edible Crops for Trellises

The most productive trellis vegetables are natural climbers that wrap, twine, or can be trained upward. Pole beans and peas practically support themselves, threading tendrils onto mesh or poles with no extra effort. For cucumbers, plant two per trellis side, about a foot from the edges, and leave at least 24 inches between plants so roots have room. Indeterminate tomatoes—the kind that keep growing until frost—need tall support; standard cages are 32 to 36 inches, but suspended 4-foot cattle panels work better for heavy production. Winter squash and melons also climb, but large fruits need slings: cut pantyhose or plastic grocery bags tied to the trellis keep melons and butternuts from pulling loose. Luffa, gourds, tomatillos, yard-long beans, malabar spinach, and some vining eggplants and zucchini also perform well on a trellis.

Ornamental and Flowering Climbers

For visual impact, clematis is a classic trellis vine; plant it where the base stays shaded but the vine reaches full sun. Carolina jessamine handles sun to part shade with bright yellow blooms. Climbing hydrangea tolerates shade and produces white flowers, with evergreen varieties available. American wisteria is long-lived and vigorous—make sure the trellis is sturdy enough for its weight. Passionflower grows as a perennial in the southern US and as an annual in cooler climates. Sweet peas, mandevilla, moon vine, and nasturtiums all climb readily and add quick seasonal color to any trellis.

How to Set Up a Trellis for Success

University of Minnesota Extension guidance recommends choosing heavier mesh for larger-fruited or vigorous crops. Pound stakes deep enough that the trellis will not tip in strong wind—a 6-foot stake driven 1 foot into the ground leaves 5 feet of trellis area. Attach mesh with nails, staples, plastic locking ties, or wire. Plant vines at the trellis foot at normal in-ground spacing, then weave growing tips gently through the mesh every few days as they lengthen. For tomatoes, place supports at planting time when plants are still small. A Florida weave—hammering tall stakes at opposite ends and running twine in a zigzag pattern—works especially well for cherry tomatoes.

When you are ready to buy a system, our tested roundup of garden trellis planter boxes shows models that combine support and container growing in one unit.

Common Mistakes to Avoid

Bush-type plants generally do not trellis well—stick to vining or indeterminate forms. Underbuilding the trellis is the most common failure; a weak structure tips in wind, so use heavier mesh and deeper stakes for heavy crops like squash and melons. Do not plant too densely: leave about 6 inches of space inside the trellis in a raised bed, and 24 inches between cucumber plants. Train young vines onto the support as they grow; waiting a week lets them sprawl across the ground instead. Finally, always support heavy fruit with slings—melon and winter squash drop without them.