If you’ve ever hauled your watering cans inside only to find rusted handles, cracked plastic, or dried-out, clogged spouts come spring, you know how much of a hassle improper winter storage can be. As a watering can supplier, I’ve spent thousands of hours talking to home gardeners, small-scale farmers, and community plot coordinators about this very issue—because the fact is, most people don’t realize that how you store your can over winter doesn’t just keep it in good shape; it extends its usable life by years. Over my decade in the business, I’ve seen brand-new galvanized steel cans corrode so badly over a single damp winter that they had to be replaced, and lightweight plastic cans develop tiny, invisible cracks from frozen water that leak all over your porch the first time you use them in March. It’s avoidable, too—you just need to understand a few key rules about what watering cans are made of, and how to prepare each type for the off-season. Watering Cans
Let’s start with the basics: what happens when a watering can sits unused over winter, especially in places with cold temperatures or high indoor humidity. Every material reacts differently. For example, the steel we use for our heavy-duty professional cans is galvanized with a zinc coating to resist rust, but if water is trapped in its base or spout all winter, that zinc will break down, leaving bare steel exposed to moisture and oxygen. Plastic cans, on the other hand, don’t rust, but most garden-grade plastics are flexible in warm weather and rigid when cold—so any water left inside will expand as it freezes, pushing on the walls from the inside and creating cracks that let mold, dirt, and even more water seep in. Even ceramic watering cans, which are popular for decorative patio use, can develop surface cracks when water freezes inside, and porous clay will absorb moisture that freezes and expands, leading to chips and breaks. I’ve worked hard to engineer our products to handle these stresses, but even the best can can’t beat neglectful storage.
The first step to winter storage, no matter what kind of can you have, is to empty it completely—and not just the water you can pour out from the spout. Most people leave a little water in the bottom, thinking it won’t hurt anything, but that small amount is enough. Take a minute to turn the can upside down after emptying and let it air out for at least 24 hours. This gets rid of the residual moisture that’s the main cause of rust, mold, and freeze damage. For cans with removable parts—like detachable sprinkler rose heads, long-reach spouts, or internal water diffusers—take those off now and clean them separately. Last season, I had a customer bring in a can that had a rose head so clogged with dried moss and mineral deposits that water barely came through, and he told me he just “rinse it in the fall and put it away” without taking the head off. Rinsing isn’t enough; soak those small parts in warm, soapy water for 30 minutes, scrub them gently with a soft brush to get rid of any gunk, and let them dry completely before storing them separately. That’s a small step that makes a huge difference when spring rolls around.
Now, let’s break down storage by material, because that’s where most gardeners go wrong. If you have a galvanized steel can—the kind we make for heavy use, with a sturdy handle and wide base for holding big volumes of water—you’ll want to take a few extra steps to prevent rust. First, after it’s completely dry, wipe the entire exterior and interior with a thin coat of mineral oil or food-grade wax. I recommend this to our professional customers because it creates a barrier between the zinc coating and the humid air of a garage or shed. Don’t use petroleum-based products, though; they can leave a sticky residue that’s hard to rinse off when you need to use the can in spring. Once it’s coated, store the steel can in a dry, well-ventilated area—never in a damp basement or against a cold concrete wall, where moisture can seep into the metal’s tiny pores. Also, avoid stacking heavy items on top of steel cans; the dent or bend in the body can throw off its balance, making it harder to carry when it’s full of water next season.
For plastic watering cans, which are popular for small patio gardens and beginner gardeners, the biggest risks are UV damage and freeze cracks. Wait, UV damage? You might not think about it, but if you store a plastic can outdoors all winter, exposed to snow and sun, the UV rays break down the plastic over time, making it brittle and prone to cracking when you pick it up. First and foremost, move plastic cans indoors, or at least into a covered porch or outbuilding that’s not exposed to direct sunlight and extreme temperature swings. Even if you live in a mild climate, plastic can degrade over time when left out. Once it’s dry, give it a quick visual check for any small scratches or dents—those are spots where water can get trapped and freeze. If you have a plastic can with a detachable rose head, make sure that’s completely dry before putting it away, because mold can grow in the tiny holes of the rose if it’s even a little damp. I always advise customers who buy our high-density polyethylene (HDPE) plastic cans, which are built to be durable, to store them hanging upside down from a hook in their garage or shed. Hanging keeps the weight off the bottom of the can, which is where cracks most often form, and it allows any remaining moisture to drain out completely.
Ceramic and decorative watering cans are a special case, because they’re not just functional—they’re often pieces you’ve bought for their design, and you don’t want to ruin them over winter. These are usually glazed, so they’re less porous than unglazed clay, but they’re still fragile. The biggest mistake people make with ceramic cans is leaving water inside that freezes, even if it’s just a small amount of water in the base. Empty it completely, then let it dry for two full days, even if it feels dry to the touch. If your ceramic can has a handle that’s glued on, avoid hanging it by the handle—especially if it’s a large, heavy can—because the glue can come loose over time. Instead, set it on a shelf lined with a soft cloth or bubble wrap, so it doesn’t get knocked around. If you have an unglazed clay can, which is more porous, you’ll need to be extra careful—even a small amount of water absorbed into the clay can expand and crack. Don’t store clay cans in a place that’s too dry, though; clay can also shrink and crack if it’s left in a heated, low-humidity space like a living room. A cool, dark closet with a little humidity, like a linen closet, is perfect, as long as it’s not too damp to cause mold.
Now, what about common mistakes I see gardeners making year after year? First, storing the can with the cap or lid on tightly. That seems like it would keep dust out, but it actually traps moisture inside, leading to mold and rust. Even if the can feels dry, there’s always a tiny bit of moisture left in the crevices, so leaving the lid off, or propped open a little, lets air circulate. Second, stacking cans on top of each other, no matter what material they are. A full can is heavy, but an empty can is surprisingly flimsy, and stacking can cause dents, bends, or cracks that you won’t notice until spring when you fill it up. Third, cleaning it with harsh chemicals before storing. Bleach or heavy-duty cleaners can break down the material over time, especially plastic, leaving it more prone to UV damage or cracking. Mild dish soap and warm water is all you need for cleaning, then a good rinse and dry.
If you don’t have space to store your can indoors, what’s the alternative? I get this question a lot from renters or people with very small garages. First, make sure it’s completely empty and dry, then cover it with a breathable tarp—never a plastic sheet, because plastic traps moisture. A canvas or nylon tarp allows air to circulate, keeping rain and snow off without letting damp build up. Place it on a raised surface, like wooden pallets, so it’s not sitting on wet ground, which can seep into the base and cause rust or rot. For plastic cans, you can also use a can storage rack, which is designed to hold cans upside down, keeping them off the ground and allowing moisture to drain. That’s a good middle ground if indoor space is limited.
As someone who works with watering cans every day, I also have a few insider tips that most gardeners don’t know. For steel cans, if you’re storing it in a damp space, you can place a small bag of silica gel (the kind that comes with new shoes or electronics) inside the can to absorb any remaining moisture. Just make sure you label it clearly so you don’t use the silica gel for anything else. For plastic cans, if you have a large one with a separate sprinkler rose, storing the rose in a separate bag with a little baking soda can help prevent mold growth over the winter. And if you live in a climate where temperatures drop below freezing for long periods, I strongly advise bringing all cans indoors, even the heavy steel ones—extreme cold can make the metal brittle, leading to cracks that you won’t see until spring when you fill it with water.
I also want to add a note about my approach to designing watering cans, because that ties directly into how easy they are to store. When we developed our line, we prioritized materials that are durable, but also forgiving when it comes to storage. Our galvanized steel cans have wide, reinforced bases that resist bending, and our HDPE plastic cans are formulated to resist UV damage, so they hold up even if you have to leave them outside temporarily. We also designed our detachable rose heads to be easy to remove and clean, because we know how much of a hassle clogged spouts can be in the spring. But even the best design can’t make up for poor storage, which is why I’m so passionate about sharing these tips with gardeners.
At the end of the day, winter storage for a watering can is all about a little preparation. It takes 15 minutes to empty, clean, and dry your can, and a little space to store it properly, and that can extend its life by years. Instead of buying a new can every couple of years, following these steps will save you money and reduce waste, which is something all of us in the gardening world care about.
If you’re looking for a high-quality watering can that’s designed with easy storage in mind, or if you’re a garden center, nursery, or landscaping company looking to stock durable, reliable watering cans for your customers, I’d love to connect. You can reach out to discuss bulk orders, custom designs, or any questions you have about watering can care. Together, we can make sure your gardening season starts smoothly in the spring, with a can that’s ready to use right away.
Roofing Nails References
- "Gardening Tool Winterization Guide." National Gardening Association, 2022.
- "Material Durability for Garden Tools." American Society of Agricultural and Biological Engineers, 2021.
- "Proper Storage for Plastic Garden Equipment." University of California Agriculture and Natural Resources, 2020.
- "Galvanized Steel Corrosion Prevention in Outdoor Tools." Steel Tank Institute, 2019.
- "Ceramic Garden Ware Care and Maintenance." Pottery Industry Association, 2021.
Linyi Power Metal Products Co., Ltd.
As one of the leading watering cans manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy cheap watering cans made in China here from our factory. For price consultation, contact us.
Address: Building 1, Jinshuiwan, Liuqing Street, Lanshan District, Linyi City, Shandong Province, China
E-mail: info@linyipower.com
WebSite: https://www.linyipower.com/
