6x3 Vertical Herbs: Trellis rosemary, chives pots sides

Build a 6 ft tall x 3 ft wide vertical herb wall with a strong center trellis for one rosemary plant and two side rails that hold small chives pots.

Put the structure where it will actually thrive. Rosemary wants the brightest spot you can give it (6+ hours of sun if possible). Chives tolerate less, so they can live on the sides without complaining. Keep the whole wall a few inches off any solid fence/wall so air can move behind it and everything dries after watering.

Make a simple, rigid frame. Use exterior 2x2s (2x3s if it’s outdoors and windy) to build a 6' x 3' rectangle. Add one horizontal brace across the middle and one vertical brace behind the center area so the trellis doesn’t wobble. If it’s freestanding, add feet or a base; if it’s mounted, plan to lag it into studs or masonry anchors. Don’t rely on tiny screws if it’s going outside.

Install the center trellis (about 18–24 inches wide). Use welded wire panel, cattle panel cut-down, or a sturdy cedar lattice. Attach it to the frame with screws and washers so it can’t pull out. Leave the bottom of the trellis about 10–12 inches above the floor or base so the rosemary pot can sit under it and the stems can be tied up easily.

Add pot rails on both sides for chives. Each side gets a vertical rail that can accept adjustable hooks or brackets. Closet standards (the vertical tracks used for shelving) work well because you can move hooks as plants grow. Slotted angle steel also works. Mount one rail on the far left and one on the far right, keeping enough clearance so pots don’t stick past the 3 ft width too much.

Place the rosemary at the base, centered. Use a deep, heavy container: 10–15 gallons minimum, 12–16 inches deep, with multiple drainage holes. Weight matters because rosemary gets top-heavy when trained upright. Use a fast-draining mix: potting soil cut with lots of perlite/pumice (think “crumbly,” not “muddy”), plus a small amount of compost. If the pot drains slowly, fix that before planting.

Hang chives pots on both sides. Use 6–8 inch pots if you can; 4–6 inch pots dry out fast on a vertical wall. Space them roughly 10–12 inches apart vertically. Three to five pots per side usually looks balanced on a 6 ft wall. Put the lowest pots high enough that splashback from watering the rosemary won’t keep them constantly wet.

Train rosemary up the trellis early. Plant it so the main stems can be gently guided toward the trellis. Use soft plant ties (velcro garden tape or stretchy ties) and make loose loops so stems can expand. Tie every 6–10 inches as it grows. Tip-prune lightly to encourage branching, but don’t shear it like a hedge at first; you want a strong central framework.

Water like the plants are different (because they are). Rosemary: water deeply, then let the top couple inches dry before watering again; it hates “always damp.” Chives: keep evenly moist, not soggy. A practical trick is separate watering routines: a slow, thorough soak for the rosemary pot, and quicker, more frequent watering for the chives pots. If you use drip lines, run one line for chives (more frequent) and a separate, slower emitter for rosemary.

Feed lightly and sensibly. Rosemary needs less fertilizer than people think; too much makes it floppy and less aromatic. A light slow-release or occasional diluted liquid feed in the growing season is enough. Chives appreciate a bit more, especially in small pots, but still keep it modest.

Maintenance that keeps it looking clean. Rosemary: keep it narrow by pruning side shoots that stick out too far, and keep tying new growth flat to the trellis. Chives: harvest outer leaves down to about 1–2 inches above the soil, and rotate pots so they don’t all lean toward the light. Every year or two, divide chives clumps when pots get crowded.

Small tips that prevent the usual mess: use saucers only if you can empty them (standing water invites rot and mosquitoes), choose one pot style/size so the wall looks intentional, and add a simple catch tray under the rosemary pot if watering indoors so you don’t end up with “mysterious” floor damage later.