How Long Will The Metal Garden Bed Last? (2024)

by Olle Gardens

The metal garden bed is a kind of convex bed, which is highly valued because it can bring various benefits to the garden. But some gardeners worry about how long a metal garden bed can be used and whether it is worth buying compared to all other types of raised beds. I did a lot of research on this topic and wrote this blog as a guide for anyone who wants to know how long metal garden beds will last.

Metal garden beds usually last at least 30 years, assuming they are well maintained. The biggest factor affecting the life of metal garden bed is the type of soil it often contacts. High acid soil will destroy the zinc layer around the metal garden bed, which will shorten the service life of the bed itself over time.

As mentioned above, how long your metal garden bed may last depends largely on the acidity of its surroundings. The biggest concern is the acidity of the soil. Anyone who wants to buy metal garden beds in the near future should be very interested in this.

How Long Will The Metal Garden Bed Last? (1)

How durable is the metal garden bed?

Metal garden bed, also known as galvanized steel garden bed, is a kind of raised garden bed, which is more and more popular because it can prevent weeds and maintain perfect soil quality.

Galvanized steel is a very popular material. Due to its durability, it is used for various horticultural products, such as water storage containers, sheds, roofs, etc. They are also very easy to maintain and durable

As metal garden beds can be very expensive, it is in the best interest of any gardener to ensure that they take full advantage of the life they purchase. One of the key ways is to understand what zinc leaching is and how it affects your metal garden bed.

When the soil in your garden is too acidic, the zinc layer covering the metal garden bed will start to decompose. Although the decomposition process is relatively slow, it will reduce the service life of the metal garden bed for a long time. Moreover, the stronger the acidity of the soil, the faster the decomposition.

This is why anyone seeking to use a metal garden bed should first consider the acidity of their soil. The pH value of garden soil varies from neutral to weak acid, which will affect the durability of metal garden beds. It is recommended to use pH neutral soil or neutralize any acidic soil before using with metal garden beds.

You may also want to consider using pH neutral water for your plants. Natural water sources, such as faucets or wells, may not be pH neutral, or may contain other substances that may affect soil acidity (such as chlorides or calcium). Avoid using highly acidic water sources or any untreated water to neutralize the pH value, as this will accelerate the decomposition of zinc in the metal garden bed.

Also, remember the preferred acidity level for plants in your garden. The biggest mistake a gardener can make is to assume that all the plants he grows like pH neutral soil.

Although yes, many plants do grow best in pH neutral soil, but there are some common exceptions, including azalea, camellia and hydrangea.

When preparing the metal garden bed, neutralizing all the soil and water may have adverse effects on the growth of acid loving plants, so please ensure that you conduct appropriate research in advance.

How can I make my metal garden bed last longer?

Galvanized steel covering metal garden beds may last long enough to meet your long-term gardening goals. However, those of us with limited budgets may wonder if there is a way to squeeze more life out of our metal garden beds.

As mentioned earlier, the most important thing to remember is to observe the acidity level of the environment, especially the soil. Some types of compost and manure are generally more acidic than others (such as fresh chicken manure) and should be avoided.

Gardeners with a large number of acid loving plants may need to reconsider using metal garden beds or heavy plastic linings to prevent acid soil from contacting zinc linings. When doing so, avoid using plastic linings under the bed as this will mess up the drain.

How Long Will The Metal Garden Bed Last? (2)

Metal garden beds or galvanized steel garden beds are excellent containers that every gardener should consider adding to their tool library.

If set correctly, a metal garden bed of a certain height can save a lot of time bending in the garden. They can also prevent weeds from growing, effectively drain water, and help maintain soil quality for a long time.

The best part is that the average metal garden bed may last at least 30 years, enough to meet any long-term gardening goals. However, care must be taken to prevent excessive decomposition of zinc, which is usually caused by the use of too acidic soil.

If you take the right steps to minimize the impact of zinc leaching, then in terms of gardening tools, metal garden beds can be one of your most durable purchases.

How Long Will The Metal Garden Bed Last? (2024)

FAQs

How Long Will The Metal Garden Bed Last? ›

Metal garden beds usually last at least 30 years, assuming they are well maintained. The biggest factor affecting the life of metal garden bed is the type of soil it often contacts. High acid soil will destroy the zinc layer around the metal garden bed, which will shorten the service life of the bed itself over time.

Are metal garden beds worth it? ›

There are a few circ*mstances when it might make sense to use a metal garden bed. If you're gardening in an area with high rainfall, for example, metal beds can help prevent flooding and soil erosion. Metal beds can also be a good choice if you are gardening on a slope as they help stabilize the soil.

Do metal raised garden beds rust? ›

Metal rusts when exposed to water. That's a hard thing to prevent when you're using it to grow plants. However, there are some ways to help avoid rust problems for the next growing season: Use a protective lining: By lining your planter, you can prevent most water from reaching the metal.

What's better, metal or wood garden beds? ›

Wood garden beds and their hardware can rust quickly, making them a subpar option if you are seeking a more permanent, long lasting garden. Specialized metal beds like those offered by Vego Garden feature zinc-covered steel which shields the beds from erosion and rust, making them ideal for any open-air application.

How long will an untreated garden bed last? ›

Untreated wood is free of chemicals, making it safer for growing edible plants. However, it is prone to rotting and pest damage. Cedar and redwood are naturally resistant to decay and can last up to 10-20 years depending on conditions. Regular maintenance, such as applying a natural sealant, can extend their lifespan.

What are the disadvantages of metal raised beds? ›

Metal frames may have sharp edges, posing a risk, especially to children or pets. Ensuring proper installation and implementing safety measures can address this concern. Metal beds can heat up quickly in direct sunlight, influencing soil temperature.

How long do metal raised beds last? ›

Metal garden beds usually last at least 30 years, assuming they are well maintained. The biggest factor affecting the life of metal garden bed is the type of soil it often contacts. High acid soil will destroy the zinc layer around the metal garden bed, which will shorten the service life of the bed itself over time.

What is the life expectancy of a raised garden bed? ›

Raised Garden Beds Can Last a Couple Years to a Lifetime

Here's the short answer based on the type of material used for the raised bed: WOOD RAISED BED: 5-10 years. METAL RAISED BED: 30 years. STONE RAISED BED: lifetime.

What is the disadvantage of metal planters? ›

One slight disadvantage to picking metal as your material of choice is that these planters can get searingly hot when left out in the glaring sun, burning your plants, drying out the soil, and increasing the chance of root damage.

Do metal beds last longer? ›

If you keep it relatively scratch-free, a quality metal bed frame can easily last 10-15 years or longer before needing to be replaced. The powder-coated paint finish applied to most metal frames also helps prevent rust and corrosion.

How do I keep my garden bed from rotting? ›

I recommend at the very least coating your lumber in linseed oil or beeswax to preserve them for the long haul. Some gardeners use lining between the interior of their raised bed and soil to protect the wood. Even with the lining, you'll get seepage of water that will penetrate that wood and linger.

Do garden beds raise property value? ›

One of the biggest factors that will determine if a garden increases the value of your home is the buyer. Beauty is in the eye of the beholder. While a garden will not appeal to all buyers, there is a niche audience who will appreciate it.

What is the longest lasting raised garden bed? ›

While untreated wood has a limited lifetime, using cedar, redwood, cypress, or hemlock can prolong the garden's life expectancy by five or ten years, meaning you can enjoy decades with your wooden raised beds. Steel is next in durability, and stone and brick can quite literally last a lifetime.

Do metal garden beds leach into soil? ›

Yes, zinc and cadmium can leach due to long-term exposure to water and changes in soil acidity levels. However, it only leaches a small amount, which is actually safe.

Do I need a liner for metal raised garden bed? ›

Raised garden bed lining isn't mandatory to have healthy growing plants. But adding raised garden bed lining does provide benefits. Many experienced gardeners recommend lining raised beds for these reasons: It provides insulation for the soil and helps control temperature fluctuations.

Do metal raised garden beds get too hot? ›

The Verdict: Metal Raised Beds Do NOT Get Too Hot for Your Plants.

Top Articles
Latest Posts
Article information

Author: Jeremiah Abshire

Last Updated:

Views: 6876

Rating: 4.3 / 5 (54 voted)

Reviews: 93% of readers found this page helpful

Author information

Name: Jeremiah Abshire

Birthday: 1993-09-14

Address: Apt. 425 92748 Jannie Centers, Port Nikitaville, VT 82110

Phone: +8096210939894

Job: Lead Healthcare Manager

Hobby: Watching movies, Watching movies, Knapping, LARPing, Coffee roasting, Lacemaking, Gaming

Introduction: My name is Jeremiah Abshire, I am a outstanding, kind, clever, hilarious, curious, hilarious, outstanding person who loves writing and wants to share my knowledge and understanding with you.