There are many ways to improve a home’s exterior. One of the things you can do is add window boxes. It requires minimal effort but does a lot when it comes to color and charm.
The problem with window boxes though is that they could rot. That’s especially true if you’re using a wooden box. It leads to struggling plants. That issue often arises when you overlook one important detail, which is the liner.
For serious gardeners with flower boxes, a liner is one of the best investments. But what exactly are window box liners? Do you really need it? Let’s try to answer those questions in this post.
What Are Window Box Liners?
First, let’s better understand window box liners.
A liner is a plastic tray or sheet. It’s usually made of natural material like coconut fiber. It’s a protective inner container. You place it inside the window planter box or flower box before you add the soil and plant.
In addition to coco liners, there are several more material types to choose from, such as plastic mesh and poly-pro liners. They also come in different sizes, ranging from 18 to 36 inches.
These liners come in sheets or rolls that you can fit to your specific planter by cutting. But there are also pre-formed ones that you can drop in immediately. Whether you have a tiered planter, a hanging basket, a railing planter, or a DIY window box, you’ll have something for your need.
Why Use Them?
Now, why should you use liners? The number one reason is protection. Wooden boxes can’t be in direct contact with soil, water, and bugs. They’re not designed for that. What planter liners do is prevent that direct contact. They extend the box’s life significantly by acting as a barrier.
Liners also reduce the risk of root rot and mold in addition to protection. It’s especially true with a liner that has a drainage hole, which helps keep excess water away from plant roots. Some liner materials also keep roots warmer in winter and cooler during the summer. Of course, how healthy a plant grows significantly depends on soil temperature regulation.
The Practical Convenience Factor
Window boxes can be hard to reach, especially if it sits high on a wall. That’s when a liner becomes practical. Planting directly in it makes the whole process easier. You can fill and plant it at a height that’s most comfortable to you. Once done, simply slide it into place and you’re good.
With a landscaping company, the process becomes even easier. They can pre-plant the liners for you. You no longer have to work around a mounted box. Quick seasonal swaps become much more manageable as a result. Even large planting projects would be less daunting. For seasonal swaps, local nurseries and plant shops are a great place to pre-plant your liners before dropping them in place.
When seasons change and you want to switch out flowers, the process becomes far less messy as well. That’s because you can just lift an old liner out and tuck in a fresh one. There’s no need to uproot perfectly healthy plants if you want to place your new blooms. It’s true whether you’re using window box hayracks, half-round wall planters, or even lamppost flower baskets.
Do You Always Need One?
So, is a liner always needed? The answer actually depends on the material used.
If you’re using plastic window boxes or PVC, you might not need a liner. The reason being these materials resist rot and moisture naturally. A liner becomes optional, especially if what you have is a low, easy-to-access box. Ultimately, what you need to consider are the location and added cost. Is the extra convenience worth it for your situation?
What if you’re using fiberglass, ceramic, and metal planters? They won’t deteriorate as quickly as wood even without a liner. So, these materials kind of sit in the middle. Liners, however, still help. Over time, their addition prevents staining and moisture damage.
However, the answer completely shifts if what you have is a wooden window box. As previously mentioned, unprotected wood quickly breaks down when it comes into contact with moisture, organic matter, or even just the soil. Thus, liners are strongly recommended.
A Small Addition That Makes a Real Difference
Yes, window box liners are just a small addition. They don’t even change how your home looks from the street. Where they make a real difference, though, is on how long your planters last. They also affect how your plants perform.
Of course, it all boils down to the material you use for your window box. Liners are practically non-negotiable for wooden boxes. And while they’re optional for other materials, liners are still worth having for those looking for a convenient planting and seasonal swap experience.