Best Rectangular Window Boxes of 2026
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Rectangular window boxes are a popular gardening accessory that allows you to add greenery and beauty to your outdoor space. These boxes are typically made of wood or plastic and come in a range of sizes, allowing you to choose the perfect fit for your windowsill or balcony railing. With the right soil, seeds, and care, you can grow herbs, flowers, and even vegetables in these boxes, adding a touch of nature to your home. These versatile window boxes are an excellent choice for anyone looking to add some flair to their outdoor space without taking up too much room.
At a Glance: Our Top Picks
Top 8 Rectangular Window Boxes
ZOENHOU 6 Pack 43cm Flower Window Box Planter
The ZOENHOU Window Box Planter is constructed from high-quality PP material, ensuring durability and resistance to cracking, making it suitable for both indoor and outdoor use. Its lightweight design allows you to easily reposition it as needed. Each planter features predrilled holes for drainage, ensuring your plants receive proper airflow and moisture, promoting healthy growth. Additionally, the included trays help maintain water levels during warm, dry spells, providing convenience for plant care.
ZOENHOU 6 Pack Flower Window Box Planter
The ZOENHOU Window Box Planter is crafted from sturdy PP material, ensuring durability while being lightweight for easy movement. With predrilled holes, it offers excellent drainage, keeping your plants healthy and well-watered. The package includes six vibrant planters and 30 green labels, allowing you to add a splash of colour to your garden or patio. Once filled with soil and flowers, these rectangular planters provide stability on outdoor shelves, making them perfect for a variety of plants.
Pingeui 6 Pack Plastic Window Box Planter
The Pingeui Window Box Planter offers ample space for growing multiple plants simultaneously, making it perfect for succulent enthusiasts. Its high-quality plastic construction ensures durability and ease of maintenance, so you won’t have to worry about rust or heavy lifting. With small drainage holes and raised feet, it promotes healthy plant growth by preventing water accumulation. Additionally, each planter comes with trays to catch excess water and labels to help you keep track of your plants, making gardening more organised and enjoyable.
HOXHA 6-Pack Indoor and Outdoor Planters
The HOXHA Window Box Planters are constructed from durable plastic, ensuring they can withstand multiple gardening seasons. Their versatile design makes them perfect for indoor and outdoor use, allowing you to enhance your windowsills, patios, or balconies. With dimensions of 17 inches long, these planters provide ample space for your plants to thrive. Additionally, the complete set includes trays, a plant spray bottle, plant labels, and mini garden tools, making your gardening experience more convenient and enjoyable.
LEXININ 6 PCS Grey Rectangular Planters
The LEXININ Rectangular Planters are ideal for adding a touch of nature to your home. With dimensions of 35 x 17 x 14cm, these plastic planters are lightweight yet durable, making them easy to handle while ensuring they last. The integrated drainage system prevents overwatering, protecting your plants and keeping your space tidy. Plus, their versatility allows you to display flowers or succulents in various settings, from your windowsill to your porch, enhancing any environment with elegance.
PINGEUI 6 Pack Rectangular Window Box Planter
The PINGEUI Window Box Planter offers a generous size of 43x18x14cm, allowing you to grow multiple plants simultaneously, which is perfect for those who enjoy cultivating various succulents. Made from durable plastic, this planter is lightweight and resistant to wear, ensuring it won't rust or break easily. Each planter comes with a helpful tray to catch excess water and soil spills, keeping your surfaces clean. Additionally, the included plant labels help you keep track of your plant varieties and their planting dates, making gardening more organised and enjoyable.
LEXININ 6 Pack Black Window Planters
The LEXININ Window Planters are versatile and stylish options for your home. With dimensions of 35 x 17 x 14cm, the ample size allows you to grow multiple plants simultaneously, enhancing your living space. Made from durable resinous material, these planters are designed to withstand outdoor conditions without cracking. The built-in drainage system, featuring holes in the pot and a tray to catch excess water, prevents overwatering, ensuring your plants thrive in a healthy environment. Use them in any setting, from window sills to balconies, to create a touch of nature indoors.
LaLaGreen Self-Watering Planter Box Set
The LaLaGreen Planter Box offers a practical 2-pack set of 16-inch black window planter boxes, perfect for your indoor plants. Its self-watering system ensures your plants receive the right amount of moisture, making it ideal for busy individuals. Installation is a breeze, as it comes without hardware, allowing for versatile use in various settings. With a classic and minimalist design, these planters beautifully complement any decor while accommodating herbs, flowers, and small plants, enhancing your home or office space.
Frequently Asked Questions (FAQs)
1. Should a window box be wider than the window?
For the best visual effect, your window box should be at least as wide as the window but should not extend more than three inches beyond the trim on each side.
2. What sizes do window boxes come in?
Since many windows are around three feet long, almost every window box style is available in 30″ and 36″ lengths. When placing a window box on a deck or porch railing, it should fill the space without making the railing unusable.
3. What is the best depth for a window box?
A minimum of 8 inches in depth and 8 inches from front to back is required to have enough room for a selection of plants. Larger–say a foot in depth and width–is even better, particularly if you want to include a lot of plants and want them to fill out enough to overflow the box.
4. What are flower boxes under windows called?
A window box (sometimes called a window flower box or window box planter) is a type of flower container for live flowers or plants in the form of a box attached on or just below the sill of a window.
During our rectangular window boxes research, we found 306 rectangular window boxes products and shortlisted 8 quality products. We collected and analyzed 3,993 customer reviews through our big data system to write the rectangular window boxes list. We found that most customers choose rectangular window boxes with an average price of £19.81.
The rectangular window boxes are available for purchase. We have researched hundreds of brands and picked the top brands of rectangular window boxes, including ZOENHOU, PINGEUI, HOXHA, LEXININ.
Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.