30 inch plastic planter boxes Seeley Cube PlanterSeeley Cube Planter 30" Extra Large Planter Box for Trees and Evergreens. Durable Steel Reinforced Fiberglass Block Cube With Drainage Lightweight Commercial Privacy Planter Living Hedge Planter Indoor Tree, Outdoor Trees Fruit Tree, Japanese Maple, Bamboo and More. Seeley. Where clean lines meet modern living. Back in stock 7 10 30" x 30" x 30" Square Box Contract Grade Commercial Grade Matte Black Finish Durable, Bulge proof, Shatterproof Fiberglass

Seeley Cube Planter - 30" Extra Large Planter Box for Trees and Evergreens. Durable Steel-Reinforced Fiberglass Block Cube With Drainage - Lightweight Commercial Privacy Planter / Living Hedge Planter - Indoor Tree, Outdoor Trees - Fruit Tree, Japanese Maple, Bamboo and More.

Seeley. Where clean lines meet modern living.

Back in stock 7/10

• 30" x 30" x 30" Square Box
• Contract Grade / Commercial Grade
• Matte Black Finish
• Durable, Bulge-proof, Shatterproof Fiberglass
• With Drainage Holes - Plugs Supplied
• Lightweight easy to move.
• Great for Indoor or Outdoor use
• For Home and Commercial Settings
• Powder Coat Smooth Matte Finish
• Weather Resistant. UV Resistant.
• For All Types of Indoor Trees / Outdoor Trees, Evergreens
• Plenty of space for healthy roots
• Front Door and Entrances. Rooftop Deck, Patio, Deck, Poolside, Walkway or End of Driveway, Frame Large Windows
• Made in India by NMN Designs
• Available 7/10

30" Seeley Cube Planter – Matte Black Architectural Fiberglass

Create a commanding focal point with the 30" Seeley Cube, a substantial architectural planter designed for spacious modern patios, rooftops, and commercial entrances. Finished in a sleek Matte Black, this planter is the ideal vessel for anchoring large specimen trees or creating high-impact privacy screens. At this specific scale, the choice of material is a critical structural specification. While 30-inch plastic or resin pots inevitably bow and warp under the immense pressure of cubic feet of soil, the Seeley is engineered from heavy-duty commercial fiberglass to maintain its sharp, geometric form.

Preferred by landscape architects and interior designers, the Seeley offers the clean lines and visual weight of custom metal or cast iron work, but with superior weather resistance and manageability. It provides a crisp, permanent foundation that keeps the focus on the foliage and the overall design composition.

Why Fiberglass is Critical for Large 30" Planters:

• Structural Rigidity (No Bulging): A 30" cube holds a massive volume of soil. Unlike plastic, which softens and bows outward at this size, our reinforced fiberglass walls remain perfectly straight and square.

• UV-Stable Matte Finish: Black absorbs significant heat. In direct sunlight, black plastic often warps or fades to a chalky grey. This professional-grade finish resists UV damage, retaining its deep, rich saturation.

• High-End Aesthetic, Manageable Weight: Achieve the sophisticated look of a permanent built-in or heavy metal planter without the logistical nightmare. It is tough and shatterproof, yet light enough to be positioned by hand during installation.

• All-Season Durability: Designed to withstand the freeze-thaw cycles that crack ceramic and the intense heat that degrades plastic, ensuring a long-term solution for both indoor and outdoor specifications.

Planter Box - Outdoor for Trees, Shrubs and Plants

The Seeley fiberglass planter box features a spacious interior, allowing your plants to grow and thrive without feeling cramped, with plenty of room for healthy roots. Drainage holes help maintain optimal moisture levels. (Plugs included).

Whether you're an interior designer, landscape architect, or home gardener, the Seeley Cube Planter is a must-have addition to your collection. It's versatile, easy to maintain, and can be used to create stunning displays of plants, flowers, and trees that will impress your guests or clients, and serve you well for many years to come.

Size Specifications
Also available in 14" - 24" Square. Click here to see smaller sizes.

• Medium Planter - 14" L x 14" W x 14" Tall 
• Large Planter - 20” L x 20” W x 20” Tall
• Extra Large Planter - 24" L x 24" W x 24" Tall
• XXL Planter - 30" L X 30" W X 30" Tall  (Black Only)

Internal dimensions are 1/2" less for L x W x H

Save Extra 10% OFF Entire Order ($125 Minimum) with Code GET10

Enjoy always free, fast shipping. Typically within 2-3 business days.