Window box, Plastic, 24-inch, Rectangular
Large Outdoor Planters
10 large outdoor planters from Mayne, Vego garden, Kante and more. Most cost $68 to $194, and half cost less than $130.
Planters whose title states a size of 20 inches or more (a height, a width or a diameter as printed), for a porch, a patio or an entry.
We do not pick by hand: a planter is here because its listed specs pass the checks.
Top brands: Mayne (4)
+24-inch length fits standard window ledges
+Drainage holes help prevent waterlogged roots
+Includes a saucer to catch runoff water
−Plastic may fade or crack in strong sun over time
No current price. Check it at the store.
Product details
Bloem Dura Cotta 24" Plastic Window Box Planter with Saucer, Black | Rectangular flower box made from durableNo current price. Check it at the store.View on Amazon
Pros
+24-inch length fits standard window ledges
+Drainage holes help prevent waterlogged roots
+Includes a saucer to catch runoff water
+Plastic construction is lightweight for easy handling
Cons−Plastic may fade or crack in strong sun over time
Compared with the 10 planters on this page+Drainage holes: only 19 of 103 here have one
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Planter box, Metal, 36-inch, 2 Pots in the set
+Set of 2 boxes
+36 inch length for railing mounting
+Designed for outdoor use
$55.71-5%Was: $58.65
as of 11/04/2026 23:48 PST - DetailsProduct details
LaLaGreen Outdoor Planter Boxes (36 Inch, 2 Pack) White Metal Deck Railings Flower Box with Coco Liner, Rectangular
$55.71as of 11/04/2026 23:48 PST - Details
View on AmazonPros
+Set of 2 boxes
+36 inch length for railing mounting
+Designed for outdoor use
How pros and cons are picked (About: Disclaimer)About this product
Window box, 24-inch, Rectangular
+Self-watering reservoir reduces how often plants need watering
+24-inch length fits narrower window sills
+Suitable for all-season outdoor use
$68.45
as of 11/05/2026 00:08 PST - DetailsProduct details
Mayne Nantucket 24in Self-Watering Rectangular Window Box Planter, White | Self-watering, All season, Fade resistant,
$68.45as of 11/05/2026 00:08 PST - Details
View on AmazonPros
+Self-watering reservoir reduces how often plants need watering
+24-inch length fits narrower window sills
+Suitable for all-season outdoor use
Compared with the 10 planters on this page+Self-watering: only 11 of 103 here have one
How pros and cons are picked (About: Disclaimer)About this product
Window box, 36-inch, Rectangular
+Self-watering reservoir reduces how often plants need watering
+36-inch length suits a standard window sill
+Suitable for all-season outdoor use
$129.54
as of 11/05/2026 00:08 PST - DetailsProduct details
Mayne Fairview 36in Self-Watering Rectangular Window Box Planter, Black | Self-watering, All season, Fade resistant,
$129.54as of 11/05/2026 00:08 PST - Details
View on AmazonPros
+Self-watering reservoir reduces how often plants need watering
+36-inch length suits a standard window sill
+Suitable for all-season outdoor use
Compared with the 10 planters on this page+Self-watering: only 11 of 103 here have one
How pros and cons are picked (About: Disclaimer)About this product
Window box, 48-inch, 2 Pots in the set, Rectangular
+Set of 2 boxes
+Long 48 inch length for wide displays
+Designed for outdoor use
$119.99
as of 11/04/2026 23:48 PST - DetailsProduct details
LaLaGreen Garden Wall Planter (48 in, 2 Pack) White Patio Window Flower Box | Outdoor Wall Planters Rectangular White,
$119.99as of 11/04/2026 23:48 PST - Details
View on AmazonPros
+Set of 2 boxes
+Long 48 inch length for wide displays
+Designed for outdoor use
How pros and cons are picked (About: Disclaimer)About this product
Window box, Metal, 36-inch, Rectangular
+Rectangular shape with 36-inch length
+Drainage holes included
+Metal construction for outdoor use
$209.50
as of 11/04/2026 23:14 PST - DetailsProduct details
H Potter Window Box Flower Planter 36" Rustic Copper & Mounting Brackets | Outdoor Rectangular Plant Container with
$209.50as of 11/04/2026 23:14 PST - Details
View on AmazonPros
+Rectangular shape with 36-inch length
+Drainage holes included
+Metal construction for outdoor use
+Includes mounting brackets
Compared with the 10 planters on this page+Drainage holes: only 19 of 103 here have one
How pros and cons are picked (About: Disclaimer)About this product
Planter box, Fiberglass, 72-inch, Rectangular
+Usable indoors and outdoors
+Weather and UV-resistant fiberglass construction
+72 inch size gives a long planting area
No price recorded yet.
Product details
Greenline Leo Tall Rectangular Fiberglass Planter, Outdoor Planter Box | Weather & UV-resistant fiberglass rectangularNo price recorded yet.View on Amazon
Pros
+Usable indoors and outdoors
+Weather and UV-resistant fiberglass construction
+72 inch size gives a long planting area
+Tall rectangular shape for deeper root space
How pros and cons are picked (About: Disclaimer)About this product
Raised bed, Metal, 36-inch, Rectangular
$194.00
as of 11/04/2026 22:35 PST - DetailsProduct details
DIY CARTEL Corten Steel Rectangular Outdoor Planter Box, Rustic & Modern Farmhouse Design, Large Raised Metal Garden
$194.00as of 11/04/2026 22:35 PST - Details
View on AmazonAbout this product
Window box, 36-inch, Rectangular
+Self-watering reservoir reduces how often plants need watering
+36-inch length suits a standard window sill
+Suitable for all-season outdoor use
No price recorded yet.
Product details
Mayne Fairfield 36in Self-Watering Rectangular Window Box Planter, Black | Self-watering, All season, Fade resistant,No price recorded yet.View on Amazon
Pros
+Self-watering reservoir reduces how often plants need watering
+36-inch length suits a standard window sill
+Suitable for all-season outdoor use
Compared with the 10 planters on this page+Self-watering: only 11 of 103 here have one
How pros and cons are picked (About: Disclaimer)About this product
Window box, 24-inch, Rectangular
+Self-watering reservoir reduces how often plants need watering
+Suitable for all-season outdoor use
+24-inch length fits narrower window sills
$129.99
as of 11/05/2026 00:08 PST - DetailsProduct details
Mayne Fairview 24in Self-Watering Rectangular Window Box Planter, Espresso | Self-watering, All season, Fade resistant,
$129.99as of 11/05/2026 00:08 PST - Details
View on AmazonPros
+Self-watering reservoir reduces how often plants need watering
+Suitable for all-season outdoor use
+24-inch length fits narrower window sills
Compared with the 10 planters on this page+Self-watering: only 11 of 103 here have one
How pros and cons are picked (About: Disclaimer)About this product
Compare specs
| planter | Planter type | Material | Largest size | Spec score | Price |
|---|---|---|---|---|---|
| Window box | Plastic | 24-inch | n/a | No current price | |
| Planter box | Metal | 36-inch | n/a | $55.71 as of 11/04/2026 23:48 PST - Details | |
| Window box | 24-inch | n/a | $68.45 as of 11/05/2026 00:08 PST - Details | ||
| Window box | 36-inch | n/a | $129.54 as of 11/05/2026 00:08 PST - Details | ||
| Window box | 48-inch | n/a | $119.99 as of 11/04/2026 23:48 PST - Details | ||
| Window box | Metal | 36-inch | n/a | $209.50 as of 11/04/2026 23:14 PST - Details | |
| Planter box | Fiberglass | 72-inch | n/a | No current price | |
| Raised bed | Metal | 36-inch | n/a | $194.00 as of 11/04/2026 22:35 PST - Details | |
| Window box | 36-inch | n/a | No current price | ||
| Window box | 24-inch | n/a | $129.99 as of 11/05/2026 00:08 PST - Details |









