Cubrosa | Onyx Dusk – 100cm XXL Concrete Square Planter – 782L Block Plant Pot

XXL Square Planter – Ideal for Trees, Feature Shrubs & Architectural Displays

Instantly enhances grand entrances, courtyards, and commercial landscapes with bold structure and heavyweight durability.

A sculptural concrete planter with a clean-lined block form, crafted from pigmented cement stone for timeless strength and visual impact.

• 782L capacity – perfect for mature trees, architectural shrubs, and large-scale plantings
• 100cm × 100cm × 100cm – commanding cubic proportions with a 91cm planting opening
• Crafted from pigmented cement stone – no paint, no peeling, no fading; colour runs throughout the body
• Indoor & outdoor use – internally sealed for moisture resistance; frost- and UV-resistant for year-round performance
• Pre-drilled drainage holes – promote root health and prevent water buildup
• Heavy-duty build – 165kg empty weight with steel-reinforced core for structural stability and theft resistance
• Flat base – sits securely on any solid, level surface
• Low-maintenance – no sealing required; wipe clean as needed

Tip: Position the Cubrosa planter before filling to avoid lifting post-planting — it’s extremely heavy once in place.

Why Choose the Cubrosa Square Planter?

• Premium pigmented concrete – colour is part of the material, so chips and scratches won’t reveal a different layer
• XXL 782L capacity – provides expansive space for trees and deep-rooted plant systems
• Raw hand-finished texture – natural pitting and surface variation make every piece unique
• Engineered durability – steel reinforcement resists cracks and impact in high-traffic or exposed areas
• Weatherproof design – UV-stable, frost-resistant, and internally sealed
• Colour integrity – Onyx Dusk is a deep charcoal blend of black and grey tones that won’t fade in sunlight
• Sustainable craftsmanship – handmade by artisans using low-waste techniques
• Architectural presence – perfect for formal entrances, luxury developments, or urban landscaping

Full Description

Introducing the Cubrosa – a striking square planter with bold geometric lines and uncompromising durability. Designed to make a powerful architectural statement, this XXL cube planter offers incredible scale and capacity, ideal for trees, structural shrubs, or large feature displays in both residential and commercial environments.

Each planter is hand-poured using premium pigmented cement stone, creating a raw, organic texture that showcases natural imperfections and character. The Onyx Dusk finish – a sophisticated blend of charcoal, black and soft grey tones – runs through the entire planter body, ensuring it won’t chip or flake over time.

The Cubrosa is built to last, with an internally sealed cavity, frost-proof exterior, and integrated drainage to keep plants healthy. Reinforced with a steel core and weighing 165kg unfilled, it’s exceptionally sturdy – ideal for public or exposed spaces where stability and theft-resistance are essential.

With no assembly, no coatings, and no maintenance beyond the occasional wipe-down, this is a planter that’s as effortless as it is impactful.

FREE UK Mainland Delivery on all products: Estimated delivery is 2–5 working days from dispatch.

Large & Oversized Items (e.g. Sofas, Mattresses, Furniture etc): 3 to 10 working days via our specialist furniture courier. We will contact you to arrange a convenient delivery date.

Please refer to our Shipping Policy to ensure your items are delivered smoothly.

Please note: Please ensure there is a clear pathway for our Courier to deliver your item to the ground floor of your property. Failure to do so may result in an unsuccessful delivery. Please check the item description and dimensions to ensure that the item fits through your doors and hallways for a swift delivery. 

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