Best Windowbox Planters in 2026: 3 Picks Compared

Updated on Oct 18, 2026

The 60-inch Venetian Decora Window Box is our top pick: it is the longest of the two copper-lined models and the best match for wide windows. We compared the three Windowbox planters listed for the brand, using only the seller-stated specs for size, material where given, and the liner or cage described in each name.

3 picks from 3 planters that match this guide with a price we can quote today, made by 35 makers. Prices below are live, each shown with the time it was read.

Quick list

Which one is right for you?

• For a wide kitchen or living room window: The 60-inch Venetian Decora is the longest copper-lined box in the pool, made to span a broad window without leaving gaps on either side. See pick 1
• For an extra-long window pair or a climber wall: The 72-inch French Quarter aluminum cage is the longest box here and its open cage design suits vining plants you want to train upward. See pick 2
• For a standard-sized single window: The 48-inch Venetian Decora keeps the copper liner of its larger sibling but fits typical one-window widths without overhanging the sill. See pick 3

All 3 picks in detail

1 Best overall

60" Venetian Decora Window Box w/ Real Copper Liner

Planter type

Window box

Largest size

60 inches

$734.97 (as of 10/18/2026 12:08 PDT - Details)

View on Amazon

This 60-inch window box is the longest of the two Venetian Decora models and states a real copper liner in its name. It is the best fit for wide windows among the copper-lined entries, with the 48-inch model as the shorter alternative in the same line.

Pros

• 60-inch length, the longest of the two copper-lined Venetian Decora models
• Real copper liner stated in the product name
• Matches the 48-inch Venetian Decora for a coordinated set

Cons

• Outer material not stated by the seller
• Requires a sill or wall span of at least 60 inches
• No stated mounting or drainage details

Good fit if

• Homes with wide windows that need one continuous box
• Gardeners who want a copper liner and may add the 48-inch model later

Skip if

• Your window width is under 60 inches
• You prefer the open cage design of the French Quarter aluminum model

Verdict: The best overall window box for wide windows, with a stated real copper liner.

2 Best extra-long window box

72in. French Quarter Aluminum Window Box Cage

Planter type

Window box

Material

Metal

Largest size

72 inches

$634.97 (as of 10/18/2026 12:08 PDT - Details)

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At 72 inches, the French Quarter is the longest stated window box in this pool of three. Its name states aluminum construction, the specs list metal as the material, and the cage-style design gives you an open structure for climbing plants.

Pros

• 72-inch length, the longest in this pool of three
• Aluminum construction stated in the product name, with the material listed as metal
• Open cage design per the name, well suited to vining plants

Cons

• Does not include the copper liner found on the two Venetian Decora models
• Weight not stated by the seller, and a 72-inch filled box is a large load
• No stated mounting or drainage details

Good fit if

• Very wide or paired windows that need one continuous run
• Gardeners growing climbers or vining plants in an open cage

Skip if

• You want a copper-lined box rather than an aluminum cage
• Your window width is shorter than 72 inches and you will not mount to the wall

Verdict: The longest of the three, an aluminum cage made for extra-wide window runs.

3 Best for smaller windows

48" Venetian Decora Window Box w/ Real Copper Liner

Planter type

Window box

Largest size

48 inches

$632.97 (as of 10/18/2026 12:08 PDT - Details)

View on Amazon

The 48-inch Venetian Decora is the shortest of the three models, so it suits standard single windows while keeping the same real copper liner stated on the 60-inch version. If your sill is under 60 inches wide, this is the copper-lined choice that fits without overhang.

Pros

• 48-inch length suits typical single windows
• Real copper liner stated in the product name
• Matches the 60-inch Venetian Decora for a tiered or staggered set

Cons

• Shorter span than both other boxes in this pool
• Outer material not stated by the seller
• No stated mounting or drainage details

Good fit if

• Standard-width windows and apartment windows
• Buyers who want the copper liner at a more compact span

Skip if

• You need a continuous box wider than 48 inches
• You prefer the 72-inch aluminum cage for a wider installation

Verdict: The compact copper-lined option for standard-sized windows.

Specs compared

How we chose these

The pool for this guide held three window boxes from the Windowbox brand, and all three appear below. We shortlisted them on the stated length (48, 60, and 72 inches), on the material where the listing gives one, and on whether the product name states a copper liner or an aluminum cage. The first two criteria come directly from each seller listing; the third is read from the product name itself. Where a spec is absent, we say it is not stated by the seller. Prices shown are read live from the store listing at the time the page loads and will change.

What to look for

Start with the window width

The three models in this pool are 48, 60, and 72 inches long. Measure the window opening and the sill below it, then pick the length that comes closest without overhanging the sill. A box that is too long will hang past the sill at both ends, while one that is too short leaves visible gaps along the window.

Copper liner vs. aluminum

The two Venetian Decora boxes state a real copper liner in the product name, but the outer material of those boxes is not stated by the seller. The French Quarter, by contrast, states aluminum construction in its name and the specs list the material as metal. Choose the copper-lined models when the liner is the feature you want, or the aluminum cage when you prefer an open structure for climbing plants.

Drainage and watering

The Old Farmer's Almanac container-gardening guide notes that a container should have a drainage hole or some other way to allow water to pass through, and that container plants tend to need more water than plants in the ground. None of the three listings here states whether the box has drainage holes or a tray, so verify drainage before planting and plan for frequent watering.

What you can grow

The Almanac guide says most vegetables need at least 12 inches of soil, with a 5-gallon container as the minimum for a tomato or squash plant, while shallow-rooted greens such as lettuce and spinach can grow in a smaller container. None of these window boxes list a depth, so compare the stated length with the root needs of the plants you plan to grow, and treat these boxes as best for shallow-rooted plants unless you confirm the depth.

Mounting and weight

Mounting hardware and the empty weight of each box are not stated in the listings. A filled 72-inch box will be heavier than a filled 48-inch box because it holds more soil, so make sure the sill, bracket, or wall anchor can bear the loaded weight. No installation instructions are given in the seller listings, so plan the mounting from the window's construction and the box's length.

Questions

How do you choose between 48, 60, and 72 inches?

Measure the window width and the sill below it. The 48-inch Venetian Decora suits standard single windows, the 60-inch Venetian Decora fits wide windows, and the 72-inch French Quarter is the longest and is meant for very wide or paired window runs. Pick the length closest to your window width without overhanging the sill.

Do the Venetian Decora boxes actually have copper liners?

Yes, per the product names. Both the 48-inch and 60-inch Venetian Decora Window Boxes state a real copper liner. The outer material of those boxes is not stated by the seller. The French Quarter is different: its name states aluminum construction, and the specs list the material as metal.

Can you grow vegetables in a window box?

Possibly, for shallow-rooted greens. The Old Farmer's Almanac notes that most vegetables need at least 12 inches of soil and that a tomato or squash plant needs a 5-gallon container at minimum, while lettuce and similar greens tolerate smaller containers. None of these listings state a depth, so check the box's depth before planting and match it to your crops.

Do these window boxes have drainage?

The three listings do not state whether the boxes have drainage holes or a tray. The Almanac's container guide stresses that a container should have a drainage hole or some other way for water to pass through, so verify drainage before planting. If the box lacks holes, you will need to add them or use an inner container that drains.

Is the French Quarter suitable for vining plants?

The product name calls it a window box cage, and the open cage design suggests it is made to support climbing or vining plants that you can train upward through the structure. The listing does not state a specific plant type, so treat the cage as a climbing-friendly option rather than a solid-sided box.

Update history

• 2026-10-18: First published.

Sources

• The Old Farmer's Almanac: Vegetable Container Gardening for Beginners
• Arcadia Garden Products
• Suncast Corporation
• Austram Garden Solutions