Raised garden beds with black metal arch trellises

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If you’re like me, you’re probably always trying to come up with new ways to increase your garden space and grow the most food possible. By growing vertically using arch trellises, I’ve added beauty to my garden while maximizing the use of space. Trellis arches can transform your garden into a lush, green paradise, increase your garden space to create a visually stunning display, and are an essential tool for any gardener looking to maximize their green thumb. But not all arches are made equal - a DIY cattle panel trellis may save you a few dollars, but won’t allow you to grow the wide variety of heavier plants you might be hoping to add to your garden and certainly won’t last as long as something specially designed for that specific purpose.

When I was planning my new raised garden bed design, I knew I wanted to add arches to pull everything together visually and create more opportunities to grow vining plants easily in the smaller space. Switching from gardening in ground, I lost some pretty significant square footage and knew I could make up for a lot of it by using trellises. Gardener’s Supply Co generously provided me with three of their 2’ x 4’ Arch Trellises for Planter Boxes, the perfect fit to go alongside their elevated garden beds, and suddenly my dreams were coming to life in front of my eyes.

A trellis arch can make your garden feel fuller, more defined, and more peaceful. They create shade in which you can rest, cool off and enjoy the fruits of your labors. These arches are constructed with sturdy metal that can easily support large plants such as squash and cucumbers - or go the other direction and plant delicate flowers. There’s even enough space to grow tomatoes.

After we built our raised beds, installing the arches was quick and easy. Once assembled, the trellis feet slide right into the hollow corners of the planter boxes. No additional hardware is required for wobble-free trellises that are built to last. These arch trellises fit the 2' x 4' Elevated Planter Box lengthwise offering shade to your plants below or you can use them as seen in my own garden to span between two elevated raised beds, creating a natural tunnel for your garden sanctuary.

What is vertical gardening?

Vertical gardening is the concept of taking plants (vegetables, herbs or fruits that are most often grown in the ground horizontally) and training or containing them within a structure you’ve made or purchased for the specific purpose of growing them upright instead.

Benefits of vertical Gardening

Physical limitations

If bending, kneeling or lifting is something that is hard for you to do, vertical gardening allows you to reduce the amount of physical effort involved in your everyday garden tasks. There is usually little to no weeding involved, and watering systems can be set up to automatically keep your plants hydrated. Harvesting is a breeze because you won’t be digging through a tangle of branches or vines looking for produce and everything will be highly visible.

Space constraints

Have you always wanted to start a garden but your postage stamp of a yard won’t accommodate your dreams? Look up instead! I bet you have a lot of unused vertical space you didn’t even think of, whether that’s a wall on the side of your house or an unused corner of your front steps. Vertical gardens use very little square footage and don’t require an existing lawn area, and therefore fit in areas where you normally would not be able to grow fruits or vegetables.

Grow more

Maybe you have space but you’re looking to maximize your yield. Vertical gardening can help with this too by allowing you to grow more efficiently. One sprawling vining squash plant can easily take up a 3 square foot area grown horizontally - squash grown vertically can take up less than a third of the amount of space!

Reduce pests and disease

How many pests and diseases thrive in shady, damp spots in your garden? Let’s use squash as an example again - squash is susceptible to powdery mildew when grown horizontally. You can all but eliminate this problem in your garden by growing vertically, since your plants will have better air circulation and stay drier.

The best materials for trellises

There are several materials that can be used to make trellises. Here are some of the most common ones, along with their pros and cons:

Wood: Wood is a popular material for trellises due to its natural look and durability. It can be stained or painted to match the surrounding environment. However, wood can be susceptible to rot, and it requires maintenance to keep it looking good.

Metal: Metal trellises are durable and can be made from a variety of metals, including wrought iron, aluminum, and steel. They are strong and can withstand heavy plants, and do not require maintenance. However, it’s important to choose finished or painted metal to prevent rust.

PVC: PVC is a lightweight and affordable material that is easy to work with. It is resistant to rot and moisture, making it ideal for outdoor use. However, PVC trellises may not be as sturdy as those made from metal, and can take away from the beauty of the garden.

Bamboo: Bamboo is a renewable resource that is lightweight and easy to work with. It has a natural look that complements many types of plants. However, bamboo can be brittle and is not as strong as metal.

Rope: Rope trellises can be made from natural fibers, such as jute or hemp, or synthetic materials, such as nylon. They are flexible and can be shaped into a variety of designs. However, rope can be difficult to work with, will stretch out and is not as strong as metal.

Plastic: Plastic trellises are lightweight and easy to clean. They come in a variety of colors and designs, making them ideal for use in gardens or as decorative accents. However, plastic can become brittle over time, and is not as strong as metal.

How to build a garden trellis

Six wood raised garden beds with black metal arch trellis

These arch trellises came in 5 pieces - 3 curved panels and 2 straight panels. Once these were connected using the provided screws and allen wrench, we just removed the end caps on the top of our elevated planter legs and inserted the legs into the corners.

This is easier with two people. All in all this only took us about 10 minutes per arch. It required no special tools and was easy enough for someone with no building experience to do.

The metal on the frame is very thick and doesn’t bend or flex at all. The interior metal that makes up the grid pattern is thinner, more like a rounded wire, but still rigid and durable. With the powder coating these should hold up for many years to come and not require any maintenance.

These arch trellises are durable enough to stay out all year long, but if we want to store them in the winter, we can just pull the arches straight up to remove them from the beds and put them indoors until spring.

Gardener’s Supply Co Arch Trellis Honest Review

Design: The arches are powder coated black, which will really allow my plants to be the focal point as they wind their way up the grid pattern overhead. I personally love the combination of the warm wood tones and deep black with the greens of the natural landscape. The grid pattern is wide enough to accommodate a large variety of sizes of vining plants easily, without being so wide that smaller vines will struggle to latch on. I also like the height and width on these - I’m shorter at 5’2” but there is still plenty of room overhead for taller friends and the spacing between the beds is ideal for creating a cozy atmosphere without feeling cramped. I think I can even fit a little table for two underneath for garden-to-table dining!

Pale yellow viola flowers in a wood raised garden bed

Material: Metal is my favorite material for garden trellises. It is strong, durable and resistant to harsh weather conditions. Powder finishes are stronger and more durable than paint coats, guaranteeing superior, longer-lasting protection.

Assembly: These arches are very easy to assemble in about 10 minutes. It helps to have a second person, but it’s not strictly necessary until you reach the part where you mount the trellis on the garden bed. The instructions were clear and all the necessary hardware was included. Installing into our existing raised beds really was as simple as sliding the feet of the trellis into the opening, so there was no fussing with alignment or mounting hardware.

Stability: I’m confident that these garden trellises will be able to withstand the strong winds that come off the back fields throughout the seasons and support the weight of any heavier plants without the need for additional support or anchoring to maintain its stability.

Maintenance: Since these garden trellises are powder coated, no maintenance is necessary - and since I deal with a lot of fatigue due to my arthritis, I’m happy to have one less garden task to add to my list.

Functionality: These arches add tons of vertical gardening space, allowing me to grow more food without bending or kneeling. Since the air flow is so great, my plants are less susceptible to diseases. Another unexpected benefit is the shade that they provide. This area of the garden always has lots of sun, and having a nice shady spot to rest in between garden tasks means I can spend more time enjoying nature.