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Bettesworth Construction
Curb Appeal

Colorful Window Boxes That Look Great and Protect Your Home

Window boxes can add color to a home when their drainage and mounting suit the exterior. Compare materials and installation options, follow product directions, and seal mounting holes to help limit avoidable moisture risks.

By Bettesworth Construction Team 4 min read
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Colorful window boxes can add curb appeal, but they need working drainage and secure attachment suited to the wall. Choose the box and mounting method for your home’s cladding and structure, and seal mounting holes to help keep water out of the wall.

A window box alone cannot guarantee protection from water damage. Before choosing flowers, check the product’s drainage and mounting instructions, the condition of the wall, and whether the box will interfere with the window.

Choose a Box for Your Home

Consider the material, finish, dimensions, drainage, mounting options, and the work required to attach and maintain the box. There is no universally best material or mounting system; the right choice depends on the product and the exterior where it will be installed.

Choice What to consider
Wood Traditional appearance; plan for finish upkeep and follow the product’s care instructions.
PVC Paintable options are available. Check dimensions, drainage, included mounting options, and compatibility with your wall. Product-life and performance statements from sellers are claims, not independent test results.
Ready-made or assembled Compare available sizes and styles, drainage holes, and whether compatible brackets are included or sold separately.
DIY or professional installation DIY requires suitable tools and careful attachment. Professional services may be available for custom measuring or difficult installations, but availability varies by location.

Plan Drainage and Mounting

Drainage and attachment are central to a sound installation. Make sure water can leave the box, and do not let brackets or other installation details block drain openings. Choose brackets and fasteners for the box, its expected load, and the wall material. Follow the product directions rather than assuming one method fits every siding or structure.

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#1 Best Overall
Fasmov 7 Pack 17 Inches Flower Window Box Plastic Vegetable Planters with Trays Vegetables Growing Container Garden Flower Plant Pot with 7 Pcs Plant Labels for Balcony, Patio, Garden, Black
  • High Quality: Made of high quality plastic, which is durable, allows you to reuse the planter for several seasons.
  • Perfect Size: 7 Pack, Planter: length 17”, width 7.4”; Tray: length 15.7”, width 6”; the total height: 5.5”, including planter, tray and 7 Pack Plant labels(RANDOM LABEL COLOR).
  • Unique Bottom Design: The bottom of nursery pot has 6 opened drainage holes with removable tray.
  • Modern Shape: Classive color with simple design, great for displaying most plants and matching most home decorative styles well.
  • Widely Used: These window planter boxes are widely used in windowsill, patio, garden, porch or other indoor outdoor occasions.

On a framed wall, the attachment needs to reach suitable framing or backing; masonry requires hardware appropriate to the masonry. If you are unsure what is behind the cladding or how to fasten the box safely, get qualified help before drilling.

Seal mounting holes as directed. Lowe’s installation guidance recommends silicone at mounting holes to help keep water from entering the stud, and This Old House includes sealing pilot holes in its installation steps. Use a sealant suitable for the product and exterior, and follow the manufacturer’s instructions.

Rank #2
Sale
Window Box Planter,10Pack Plastic Vegetable Flower Planters Boxes
  • WINDOW BOX PLANTERS DIMENSIONS - Includes pack rectangular plastic planters. The size of plastic flower planters: L16.6 x W7 x H5.9 inches, large enough to support any projects and ideas. Great for herbs, flowers, foliage, grass, cactus, succulents, ferns, arborvitae and more.
  • DURABLE PLANT POTS - Made of high quality plastic, which is recyclable, lightweight and sturdy, our window planters for outdoor can be exposed to the sun, rain and snow without discoloration for a long-lasting use. The surface of the planters is smooth, so it is easy to clean too.
  • ATTACHED DRAINAGE TRAY - This large plastic plant pot with drainage features a attached saucer at the bottom for proper draining of live plants. Which helps your plants to grow healthier.
  • WATER INLET DESIGN - The rectangular plant pots are designed with 2 water inlets at the bottom, so you can water your plants from the water inlet directly. This design ensures that you can water your plants well without making the tables or windowsills get wet, keeping it clean and dry.
  • MULTIPURPOSE - The rectangular red planter is simple and practical, which makes it a nice home decor for your windowsill, garden, porch, balcony, kitchen, deck, patio, and other indoor outdoor use. Suitable to plant miniature roses, tulip, carnation or other flowers, vegetables, fruits.

DIY Installation: A Careful Approach

Tools and materials vary by box and wall. Lowe’s lists a drill/driver, stud finder, fasteners, and silicone caulk among the items for its installation guidance. Check the product instructions for the appropriate hardware and method for your cladding.

  1. Inspect the intended location and confirm the wall and window are suitable for the box.
  2. Read the box and bracket instructions. Check the dimensions, mounting options, drainage openings, and any load guidance supplied by the manufacturer.
  3. Lay out the mounting points according to the instructions, using a stud finder where appropriate on a framed wall.
  4. Drill and fasten using hardware suited to the wall and the product. Do not block drain openings.
  5. Seal mounting holes as directed, using exterior silicone where appropriate to the installation.
  6. Fit the box and confirm it is secure and that water can drain before planting.

Installation details vary with siding and structure. If the location is difficult to access, the wall is damaged, or you cannot identify an appropriate attachment method, use a qualified installer.

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Rank #3
Sale
Window Box Planter,7 Pack Plastic Vegetable Flower Planters Boxes
  • WINDOW BOX PLANTERS DIMENSIONS - Includes pack rectangular plastic planters. The size of plastic flower planters: L16.6 x W7 x H5.9 inches, large enough to support any projects and ideas. Great for herbs, flowers, foliage, grass, cactus, succulents, ferns, arborvitae and more.
  • DURABLE PLANT POTS - Made of high quality plastic, which is recyclable, lightweight and sturdy, our window planters for outdoor can be exposed to the sun, rain and snow without discoloration for a long-lasting use. The surface of the planters is smooth, so it is easy to clean too.
  • ATTACHED DRAINAGE TRAY - This large plastic plant pot with drainage features a attached saucer at the bottom for proper draining of live plants. Which helps your plants to grow healthier.
  • WATER INLET DESIGN - The rectangular plant pots are designed with 2 water inlets at the bottom, so you can water your plants from the water inlet directly. This design ensures that you can water your plants well without making the tables or windowsills get wet, keeping it clean and dry.
  • MULTIPURPOSE - The rectangular red planter is simple and practical, which makes it a nice home decor for your windowsill, garden, porch, balcony, kitchen, deck, patio, and other indoor outdoor use. Suitable to plant miniature roses, tulip, carnation or other flowers, vegetables, fruits.

Planting and Appearance

Choose plants for the light and conditions at the window, and use a potting mix and planting approach suitable for the box. Keep the drainage path clear, and make sure plants do not prevent the window from operating as intended.

For a coordinated look, choose a box finish that works with the home’s trim or other exterior details, then select flowers and foliage for seasonal color. Check the box and its mounting periodically, clear blocked drainage, and follow the product’s care instructions.

Rank #4
8pcs Window Box Planter,17 Inches Flower Window Boxes,Rectangle Planters Box with Drainage Holes and Trays, Plastic Vegetable Planters for Windowsill Patio Garden Home Decor Porch Yard (Black)
  • 2 DRAINAGE HOLES & ATTACHED SAUCER – This box planter for window was created with an integrated planter tray and two drainage holes to allow excess water to drain over time and avoid leaks from ruining your windowsill, making it a simple task to grow a plant or flower for beginners. This was done to guarantee that the soil could breathe while still maintaining a clean appearance.
  • PREMIUM MATERIAL & LONGER-LASTING – Our windowsill planter is crafted from high-quality plastic that is resistant to the effects of aging. As a result, it is extremely durable, resistant to damage, and able to withstand extended exposure to outdoor elements such as light, wind, and sunshine. It has a service life that spans decades and is a dependable companion for you.
  • RECTANGULAR BOX PLANTER FOR WINDOW – This rectangular window planter box was designed specifically for windowsill planting projects. It measures 17x7x6.3 inches and is able to fit perfectly on most windowsills, windows, balconies, and other narrow areas. As a result, you will be able to have your very own miniature planting garden in a space that is only a few square feet in size.
  • COMBINATION OF FUNCTIONALITY & FASHION – The rectangular planter that we provide has a clean and contemporary look to it. Your plants, flowers, veggies, and herbs will have the ideal growing environment thanks to the monochromic design and clean lines, and your space will have a more intimate feel as a result of the greenhouse's contribution to the overall ambiance. There are 8 planter box in the package, plenty enough for growing enough plants for the house.
  • VERSATILE PLANTER & SATISFACTION – This windowsill planter flower pot comes with an integrated tray that may be used to cultivate a wide range of plants, including succulent, flowers, greeneries, veggies, basil, and many more. It is the ideal size for the window in the kitchen, the windowsill, the deck, the patio, the porch, the desk in the workplace, the indoors, and the outdoors. If you have any question regarding this window box planter, please turn to us, we are glad to assist you!
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

When to Get Professional Help

Consider professional installation if the box is difficult to reach, the wall material or structure makes attachment uncertain, or the project calls for custom measuring or other specialized work. Services vary by area; examples in the research include professional installation and, from a Columbus provider, custom measuring, irrigation, and seasonal planting. These are examples, not endorsements or guarantees of local availability.

FAQ

How should I attach a window box?

Use the mounting method and fasteners suited to the box and wall. Follow the manufacturer’s instructions; framed walls and masonry require different attachment approaches. If you cannot identify suitable backing or hardware, consult a qualified installer.

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Best Value
Mayne Fairfield 48in Self-Watering Rectangular Window Box Planter, Black
  • Durable Window Boxes: We use 100% high-grade Polyethylene resin in the manufacturing process - making our products durable, lightweight and highly shock resistant
  • Four Season Use: These 4ft window boxes are resistant to high impact, chemicals and extreme weather conditions - this product stands true to its 'four-season use' tag with very little winter preparation
  • Long Lasting Quality: The resin used to create our products contains built-in UV inhibitors that reduce the damaging effects of the sun - this ensures that your product doesn't fade, preserves its color and increases its overall lifespan
  • Innovative Design: Double-wall design makes these Fairfield Window Boxes sturdy, and provides the roots and potting mix with adequate insulation from surrounding weather conditions
  • Self-watering Factor: In a self-watering window box, the planting container sits directly inside the water reservoir - the water is then pulled into the potting mix through capillary action, keeping your plants watered & happy!

How do I keep water from getting into the wall?

Keep the box’s drainage openings clear and seal mounting holes as directed. Lowe’s and This Old House both include sealing mounting holes or pilot holes in their installation guidance. These measures can reduce avoidable moisture risks but do not guarantee that a wall will remain free of water damage.

Is wood or PVC better for a window box?

Neither is best for every home. Wood offers a traditional look and requires finish upkeep; paintable PVC options are also available. Compare the product’s dimensions, drainage, mounting options, wall compatibility, and care instructions before choosing.

Can I install a window box myself?

DIY may suit someone who has the right tools, can identify an appropriate attachment method, and can follow the product instructions. For uncertain wall conditions or difficult access, consider a professional installer.

What should I check before buying a window box?

Compare its dimensions and style, material and finish, drainage, included or compatible brackets, wall compatibility, load guidance, and installation requirements. Check that the box will not interfere with the window.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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