Best Black Metal Planters For Outside: Compare 10 Styles

#1 · Best Overall

1. WIZWERK Metal Planter Box

• Dimensions D x W x H: 12"D x 32"W x 16"H
• Dimensions: 12 x 32 x 16 in
• Size: 32" L x 12" W x 16" H

Best for: Weather-exposed herb rows.

Why it ranks #1: The 32 x 12 x 16-inch galvanized steel box lists a drainage hole and rust, UV, and weather resistance for outdoor planting.

A 32-inch length paired with a 16-inch height gives the WIZWERK planter a deep, elongated profile for flowers, herbs, vegetables, or ornamentals. Its galvanized steel core and powder-coated finish are specified to resist rust, fading, and peeling, supporting use in changing outdoor weather.

The 32-by-12-inch footprint creates a defined planting row, while the 16-inch depth provides room for stronger root growth, according to the product details. A galvanized steel core under a powder-coated finish is intended to resist rust, fading, and peeling in sun, rain, and changing weather, which suits exposed outdoor placement. The listed drainage hole supports water escape. This is a single rectangular planter, rather than a multi-bed kit, for buyers planning one contained growing area.

Skip it if you want a wide, open-bottom bed for large vegetable rows; this planter is 12 inches wide and has a listed drainage hole.

Pick the WIZWERK for a weather-exposed patio or garden row where 32 inches of length and 16 inches of depth fit the planting plan. Its 12-inch width is a practical limit for sprawling crops.

Listed on Amazon as: Metal Planter Box 32 Inch Outdoor, Galvanized Steel Raised Garden Bed

#2 · Highest Capacity

2. GZGNEEVL Rectangular Planter

• Dimensions D x W x H: 36"D x 12"W x 16"H
• Dimensions: 36 x 12 x 16 in
• Size: 36" L x 12" W x 16" H

Best for: Drainage-ready mid-size troughs.

Why it ranks #2: Its galvanized steel, black powder-coated 36 x 12 x 16-inch body holds 30 gallons and includes two drainage holes.

Two drainage holes in the bottom surface give this 36-inch GZGNEEVL planter a direct route for excess water to escape. Its 36-by-12-by-16-inch galvanized steel body has a black powder coating, bringing a long rectangular shape to outdoor planting with a listed 30-gallon capacity.

The 36-inch length and 12-inch width create a narrow row for flowers or other plantings, while the 16-inch height offers more vertical room than a shallow bed. Galvanized steel with black powder coating is described as wear- and corrosion-resistant, supporting the listed outdoor use. Two bottom drainage holes are specified, so watering can account for runoff below the container. Assembly uses four sides and a bottom surface, with an installation manual, Allen wrench, screws, and gloves included.

Skip it if you want screw-free assembly; this planter's package lists 22 screws and an Allen wrench for installation.

Choose the GZGNEEVL for a 36-inch outdoor trough when a black coated galvanized-steel body, 30-gallon capacity, and bottom drainage fit your plan. Account for its screw-based assembly before choosing a setup location.

Listed on Amazon as: Black Planter Box 36" L x 12" W x 16" H, Rectangular Metal Planter

#3 · Tallest Planter

3. CYQKEO Large Metal Planter

• Dimensions D x W x H: 13"D x 38"W x 30"H
• Dimensions: 13 x 38 x 30 in
• Size: 38" L x 13"W x 30"H

Best for: Quick-assembly tall borders.

Why it ranks #3: The 38 x 13 x 30-inch planter lists drainage, rust, UV, and weather resistance, plus tool-free assembly and an insert shelf.

Tool-free assembly is the CYQKEO planter’s clearest practical advantage: the listed design needs no screwdriver, drill, screws, or extra hardware. Its long, 30-inch-tall black metal form suits an elevated patio or outdoor planting border, and the product also lists drainage and weather resistance.

The 38-by-13-inch footprint creates a narrow rectangular planting strip, while the 30-inch height raises the planter above a low garden bed. Tool-free assembly is stated to take most customers about two to five minutes, which can simplify setup without gathering hardware. The listed insert shelf, drainage hole, and rust-, UV-, and weather-resistant features add practical considerations for outdoor use. At 39 pounds, the planter itself is substantial, so plan its position before assembly rather than treating it as a lightweight container.

Skip it if you need to move a lightweight planter frequently; this CYQKEO model weighs 39 pounds before planting medium is added.

Choose the CYQKEO for a fixed patio border when quick, hardware-free assembly and a tall rectangular profile matter. Its 39-pound listed weight makes placement planning important if you expect to rearrange the garden.

Listed on Amazon as: 38L x 13W x 30H Large Metal Planters for Outdoor Plants – Black Planter Box

#4 · Best Pair

4. Wallowa Tall Planter Set

• Dimensions D x W x H: 14"D x 14"W x 30"H
• Dimensions: 13.58 x 29.92 x 13.58 in
• Size: 30 Inch – 2 Pack

Best for: Tall paired entryway planters.

Why it ranks #4: This set of two 14 x 14 x 30-inch galvanized steel planters has an outdoor powder-painted finish, drainage holes, and insert shelves.

Two 30-inch-tall planters give the Wallowa set a vertical profile for framing a porch or patio without using a broad bed. Seam-welded galvanized steel and outdoor powder-method paint support outdoor placement, while each planter includes an insert shelf and a drainage hole.

The 14-by-14-inch footprint keeps each container relatively narrow, while the 30-inch height raises plantings for a more prominent entryway or patio display. The set includes two planters, making paired placement possible on either side of a doorway or along a walkway. Seam-welded galvanized steel and outdoor-special baking paint are specified for the construction and finish; the product also says the paint is intended to withstand weather. An insert shelf and drainage hole are included, useful details to consider when arranging plants and watering.

Skip it if you need high-capacity containers for large root systems; each Wallowa planter is listed at 14 liters.

Choose the Wallowa pair when you want tall, matching black planters for a porch, patio, or indoor display. The narrow footprint helps with placement, but the listed 14-liter capacity sets a clear limit on planting volume.

Listed on Amazon as: 14Lx14Wx30H Tall Metallic Heavy Planter for Outdoor Porch/Patio Set of 2

#5

5. SCENDOR Square Garden Planter

• Dimensions D x W x H: 16.5"D x 16.5"W x 17.9"H
• Dimensions: 16.5 x 16.5 x 17.9 in
• Size: 16.5" x 16.5" x 17.9"

Best for: Deep square patio planting.

Why it ranks #5: The 16.5-inch-square, 17.9-inch-tall black steel planter is described as heavy-duty and has a drainage hole for patio or garden use.

At 17.9 inches tall, the SCENDOR offers a deeper square container for flowers, herbs, vegetables, or succulents in a patio, deck, or indoor setting. Its thick, powder-coated black steel is described as heavy-duty and rust-resistant, giving outdoor growers a durable-feeling format with drainage holes.

The 16.5-inch square base supplies a contained growing area, while the 17.9-inch height gives plants more vertical room than a low garden bed. Those dimensions suit mixed planting, including flowers, herbs, leafy vegetables, and succulents, as the listing specifies. Thick powder-coated steel is described as rust-resistant for indoor and outdoor use, and drainage holes are listed to let excess water escape. Its classic square format works as an individual decorative planter rather than an extended row.

Skip it if you need a continuous vegetable row or multiple beds; this is one 16.5-inch-square planter rather than an extended garden kit.

This SCENDOR suits buyers seeking a substantial square container for mixed planting on a deck, patio, or indoors. Choose it for depth and a compact footprint, not for covering a long stretch with one planter.

Listed on Amazon as: Black Metal Garden Planter Box – 16.5" x 16.5" x 17.9" Heavy Duty with Drainage Holes for Outside Indoor Patio Deck Decorative Raised Plant Container for Flowers, Vegetables, and Succulents

#6 · Compact Two-Pack

6. GSK Square Planter Set

• Dimensions D x W x H: 13.8"D x 13.8"W x 13.8"H
• Dimensions: 13.8 x 13.8 x 13.8 in
• Size: 13.8"H×13.8"W×13.8"L

Best for: Compact matched-pair patios.

Why it ranks #6: Two matching black metal square planters measure 13.8 inches on each side, providing a compact paired option for outdoor arrangements.

A two-planter set gives you matching black square containers for coordinating an indoor or outdoor planting area. Each GSK planter measures 13.8 inches on every side, making the footprint easy to plan around patios, entryways, or other spaces where a broad rectangular bed would not fit.

The galvanized-steel construction and square 13.8-inch dimensions make this set a straightforward choice when you want two coordinated containers rather than one long bed. The listed indoor/outdoor use lets you place them in different settings, while their matching shape supports a consistent arrangement. Tools are included, so they are part of the supplied package for setup. The listing does not specify drainage, planting depth beyond the overall height, or a finish-protection rating, so those details should not drive your choice.

Skip it if you need a long, deep bed for substantial vegetable rows; this set's 13.8-inch square containers offer a smaller footprint.

Choose this GSK pair for coordinated small-space planting indoors or outdoors, especially when two matching square containers suit your layout. Its compact dimensions are the boundary: gardeners needing broad, deep growing beds should look elsewhere.

Listed on Amazon as: GSK Galvanized Steel Black Metal Square Planter for Indoor Outdoor 2-Pack

#7

7. MinCHI257 Long Planter

• Dimensions D x W x H: 38"D x 13"W x 30"H
• Dimensions: 38 x 13 x 30 in
• Size: Large

Best for: Fast-fit long garden rows.

Why it ranks #7: The listing describes a 40 x 16 x 18-inch black metal box with spring-buckle assembly, though its specification dimensions conflict with the title.

A spring-buckle and card-slot assembly system lets this MinCHI257 planter fit together without screws, making setup and removal simpler than a screw-fastened design. The listing describes a 40-by-16-by-18-inch black rectangular format and sturdy stainless steel that can support 220 pounds of soil.

The long rectangular shape provides space for flowers or other plantings across a patio or porch, while the 16-inch width gives the bed more room across than a narrow trough. Spring buckles and card slots remove the need for screws, which the listing says makes installation and removal easier. Sturdy stainless steel is specified, along with a 220-pound soil capacity. The product is also described as portable, though its soil load means moving it is best considered before filling.

Skip it if you need a tall, narrow divider-style planter; this model's listed 18-inch height is lower than the 30-inch MinCHI257 B0F8C4NJNC.

This MinCHI257 suits buyers who want a longer, moderate-height patio bed with screw-free assembly and a stated 220-pound soil capacity. Its 18-inch height is the relevant boundary if you need a taller visual screen.

Listed on Amazon as: 40" L x 16" W x 18" H Metal Large Rectangular Planter – Long Planter Box for Outdoor Patio/Porch Planter Boxes Outdoor Modern Design for Plants, Flowers, Garden,Spliced Flower Pot (Black)

#8

8. MinCHI257 Tall Planter

• Dimensions D x W x H: 38"D x 13"W x 30"H
• Dimensions: 38 x 13 x 30 in
• Size: Large

Best for: Tall narrow patio screens.

Why it ranks #8: This black metal planter is listed at 38 x 13 x 30 inches and features spring-buckle assembly, but its outdoor resistance is not specified.

A 30-inch height gives this MinCHI257 planter a raised, narrow profile for flowers along a porch or patio edge. Its spring-buckle and card-slot system assembles without screws, while the stainless-steel construction and stated 220-pound soil capacity offer practical support for a substantial planting load.

The listed 38-by-13-by-30-inch dimensions create a long, narrow container that can define an edge without occupying the width of a broad garden bed. Its tall profile raises plants, while the no-screw spring-buckle and card-slot assembly is intended to make installation and removal easier. The listing specifies sturdy stainless steel and a 220-pound soil capacity, and identifies the planter as portable. Because the capacity is stated in soil weight, plan the fill and final location before moving it into place.

Skip it if you need a broad bed for crops that spread across a wide area; this model is only 13 inches wide.

Choose this MinCHI257 for a tall, slim planting line where the 30-inch height and screw-free assembly fit the setting. Its 13-inch width favors narrow borders over crops that need broad lateral room.

Listed on Amazon as: 38" L x 13" W x 30" H Metal Tall Rectangular Planter – Large Planter Box for Outdoor Patio/Porch Modern Design for Plants, Flowers, Garden,Spliced Flower Pot (Black)

#9

9. Rakukiri Raised Bed Set

• Dimensions D x W x H: 48"D x 24"W x 11"H
• Dimensions: 48 x 24 x 11 in
• Size: 48"L x 24"W x 11"H

Best for: Recycled-metal vegetable beds.

Why it ranks #9: Two 48 x 24 x 11-inch galvanized steel beds provide a broad, bottomless growing area and a stated rust-resistant coating.

Two four-foot raised beds give the Rakukiri set a roomy layout for vegetables, flowers, or herbs, with a bottomless design that opens directly to the ground. Its GRS-certified recycled metal and galvanized steel with anti-rust coating address both material sourcing and outdoor durability.

Each 48-by-24-inch bed provides a broad planting area, and the 11-inch height keeps the profile lower than a deep planter box. The open-bottom format connects the bed to the ground beneath it, while the listing describes the design as breathable. Thick galvanized steel and an anti-rust coating are specified for resistance to rain, snow, sun, and wind. GRS certification and the stated BPA-free, heavy-metal-free material make the set particularly relevant to buyers prioritizing those material claims for food gardening.

Skip it if you need a planter with a solid bottom for a paved patio; these beds are explicitly bottomless and open to the ground.

The Rakukiri set fits gardeners preparing ground-level vegetable or herb beds who value recycled-material certification and a two-bed layout. Its open bottom is central to the design, so it is not a contained solution for hard surfaces.

Listed on Amazon as: Raised Garden Bed Outdoor, GRS Certified Recycled Metal Planter Box 2 Sets, 4FT Galvanized Oval Herb Garden Kit, Bottomless Large Garden Beds for Vegetables Flowers, Rust-Resistant Black

#10

10. Henshwon Raised Bed Kit

• Dimensions D x W x H: 84"D x 36"W x 12"H
• Dimensions: 84 x 36 x 12 in
• Size: 7x3x1FT(2PCS)

Best for: Large open-ground garden kits.

Why it ranks #10: The two 84 x 36 x 12-inch galvanized steel beds have open bases and rust resistance, but their large garden-bed format is less versatile as a planter.

Two 7-by-3-foot beds give the Henshwon kit substantial ground-level planting space for vegetables, tomatoes, flowers, or herbs. Their open-bottom design lets water drain away and supports root access to the soil below, while thick galvanized steel is specified for rust resistance in varied weather.

Each bed measures 84 by 36 by 12 inches, creating a wide footprint for larger planting plans; the two-bed package supplies 21 cubic feet of listed capacity. An open base prevents standing water and root rot according to the product details, so these beds suit direct-ground setups rather than contained patio pots. Thick steel and galvanized construction are specified for rust resistance, while safe edges and weather resistance are listed features. Tools, screws, gloves, and a manual are included for assembly.

Skip it if you need a contained planter on a deck or paved patio; these Henshwon beds have an open base.

The Henshwon kit fits gardeners with ground space for two large vegetable or flower beds and who want open-bottom drainage. Its 84-by-36-inch footprint per bed requires room to lay out the set.

Listed on Amazon as: 7x3x1ft(2 PCS) Galvanized Raised Garden Beds Kit,Black