Best Rectangular Window Boxes of 2025

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Rectangular window boxes are a popular choice for those who want to add some greenery to their home without taking up too much space. These boxes are perfect for displaying flowers, herbs, or even small vegetables. Made from materials such as wood, metal, or plastic, they come in a variety of sizes and colors to match any home's decor. With their sleek design and easy-to-install brackets, rectangular window boxes are a great way to bring a touch of nature to any window or balcony.
At a Glance: Our Top Picks
Top 10 Rectangular Window Boxes
Veradek Brixton Window Box Plastic Planter
The Veradek Brixton Window Box Plastic Planter, also known as Veradek Window Planter, is a durable and stylish planter designed for outdoor balconies and windowsills. Made from high-grade recycled plastic, this planter is impact, scratch, and UV-resistant, ensuring its longevity. With its classic estate design, it combines old-world charm with modern technology. The double-walled construction makes it all-weather resistant, capable of withstanding extreme temperatures. Proudly made in Canada, you can trust in the quality and durability of this planter. Whether you want to grow flowers, herbs, or succulents, the Veradek Window Planter is an ideal choice for adding beauty and greenery to your outdoor space.
Southern Patio 36 Inch Planter (2 Pack)
The Southern Patio Window Box is a versatile solution for adding greenery to your indoor or outdoor spaces. With two 36-inch planters included, you can easily enhance your window area. Made from weather-resistant and UV-protected resin, these planters withstand the elements, allowing you to enjoy your plants without worry. Their simple and functional design complements your plants beautifully, making your garden look polished. Plus, the built-in drainage holes ensure that excess water escapes, preventing overwatering and root rot. This means you can focus on enjoying your plants instead of worrying about their care.
LEXININ Window Planter Box
Introducing the LEXININ Window Planter Box, a premium rectangular flower pot made of thickened plastic. With its good breathability, this planter box allows your plants to breathe freely while preventing water accumulation. The unique design includes a removable pot tray and fixing holes for easy use. Measuring 42 x 17.5 x 14.5 cm, this planter box is perfect for growing various plants indoors or outdoors. It's ideal for decorating your windowsill, patio, garden, balcony, and more. The LEXININ Window Planter Box offers durability, breathability, convenience, and versatility for all your gardening needs.
FillTouch Long Rectangular Planter Box
The FillTouch Rectangular Planter is a stylish and functional addition to your home. Its modern design includes two drainage holes that help prevent overwatering, allowing you to keep your plants healthy and vibrant. Made from durable grade 304 stainless steel, this planter is scratch-resistant and designed to last, ensuring your decor remains beautiful for years. With its lightweight build, you can easily move it around your home or outdoor space. Plus, it comes with rubber feet and a felt mat to protect your surfaces from scratches, making it a perfect fit for any setting.
LaLaGreen 16 Inch Self-Watering Planter Box
The LaLaGreen Self-Watering Planters are designed for your convenience. Each 16-inch planter set includes an outer and inner pot along with a water level indicator, making it easy to choose the right size for your plants. The self-watering feature is perfect for busy individuals, allowing you to enjoy your indoor and outdoor plants without constant attention. Installation is a breeze, as these planters require no additional hardware and fit seamlessly into any environment, from homes to offices. Their modern and minimalist design adds a touch of elegance, making them ideal for herbs, flowers, or even a small vegetable garden.
LaLaGreen Self-Watering Wall Planters
The LaLaGreen Wall Planters offer a convenient gardening solution with a self-watering system that simplifies plant care for busy individuals. Each set includes an outer and inner planter, along with a water level indicator to help you maintain the right moisture level effortlessly. You can easily set it up by inserting the inner planter, filling the outer planter with water, and adding soil and plants. The durable brackets can hold up to 30 lbs, making them suitable for various plants. Their minimalist design enhances any space, allowing you to enjoy both flowers and homegrown produce in style.
GREANER Window Boxes Planters
The GREANER Window Boxes Planters come in a set of 3 black rectangle planters with drainage holes and trays, perfect for planting herbs, vegetables, and flowers. The simple yet modern design is easy to decorate in any setting, and the planters are made with durable and anti-corrosive ABS plastic material. These functional succulent herb planters can be used indoors or outdoors, making them a great gift for family, friends, and co-workers.
8pcs Window Box Planter
Introducing the Hananojia Window Box Planter, a versatile and stylish addition to your home decor. This rectangular planter box is designed specifically for windowsill planting projects, with dimensions of 17x7x6.3 inches to fit perfectly on most windowsills, balconies, and narrow areas. The integrated planter tray and two drainage holes ensure proper water drainage, making it perfect for beginners. Made from high-quality plastic, this planter is resistant to aging and can withstand outdoor elements. Its clean and contemporary design adds a touch of sophistication to any space, creating an ideal growing environment for your plants. With 8 planters included, you'll have plenty of space to cultivate a wide range of plants, from succulents to herbs. Transform your kitchen, patio, or office with the Hananojia Window Box Planter.
SINJEUN 6 Pack Flower Window Box
The SINJEUN Flower Window Box is crafted from durable PP plastic, ensuring it withstands outdoor elements without becoming brittle. Its sleek black design adds a touch of elegance to any space, making it a stylish addition to your home. You’ll appreciate the included 30 plant labels, which allow you to easily identify your plants by writing their names or planting dates. Versatile in use, these rectangular planters can accommodate both flowers and vegetables, fitting perfectly on windowsills, balconies, or gardens, enhancing your decor while providing a practical planting solution.
LEXININ 14 Inch Plastic Planter Box
The LEXININ Plastic Planter Box is crafted from durable, thickened plastic, ensuring it withstands the test of time. Its innovative double-row ventilation design promotes excellent air circulation, allowing your plants' roots to thrive while preventing water buildup. Each planter features a removable tray and strategically placed holes for easy watering and drainage, making maintenance hassle-free. With dimensions of 35 x 17.5 x 14 cm, this planter is perfect for growing a variety of plants, from flowers to vegetables, enhancing your indoor and outdoor spaces effortlessly.
Frequently Asked Questions (FAQs)
1. Should window boxes be as wide as the window?
Editor's tip: 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 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.
3. Do window boxes need drainage?
It's absolutely necessary that a window box have drainage holes so plants do not sit in soggy soil. If your box does not come with holes, you will need to drill holes in the bottom before installation.
4. What is the best depth for a window box?
Window boxes should be a minimum of 8 inches in depth and 8 inches from front to back to have enough room for a selection of plants. Larger boxes, such as 12 inches in depth and width, are particularly better if you want to include a lot of plants, and want them to fill out enough to overflow the box.
During our rectangular window boxes research, we found 24 rectangular window boxes products and shortlisted 10 quality products. We collected and analyzed 5,954 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 $22.57.
The rectangular window boxes are available for purchase. We have researched hundreds of brands and picked the top brands of rectangular window boxes, including Veradek, Southern Patio, LEXININ, FillTouch, GREANER. The seller of top 1 product has received honest feedback from 873 consumers with an average rating of 4.4.

Steven Taylor grew up in a small town called Beaufort in South Carolina and his passion for building and woodworking has led him to master the latest garden gadgets. He always holds every chance to patch up or sand down his beloved garden. There are various novel technologies in his articles.