Sigma Planters Pty Ltd
Trusted by Building and Landscape Professionals Since 2008
✓ Fiberglass: 50% Lighter. Strong
✓ High Quality Paint: UV-Resistant
✓ Built-In Feet. ✓ Internally Sealed
Sigma Planters Pty Ltd
Trusted by Building and Landscape Professionals Since 2008
The perfect balance of industrial strength and architectural portability.
Traditional concrete is heavy and prone to cracking; Lightweight Concrete (GRC) is the modern solution for high-end landscaping. This category is dedicated to helping you understand the unique properties of glass-reinforced concrete and how it outperforms standard materials in the Australian climate.
Learn about the structural benefits of GRC for rooftop gardens and balconies where weight is a critical factor. We provide expert “how-to” guides on maintaining the raw, industrial finish of your concrete-look planters and tips for pairing their neutral tones with bold Australian flora.
Shop the Lightweight Concrete Collection
Sigma Planters Fibreglass Planters are the result of a meticulous manufacturing process that combines advanced technology with traditional craftsmanship. To meet the diverse needs of our clients, we operate two modern factories in China and Vietnam, each employing...
For the last decade, biophilic design has been a staple of architectural briefs, yet its execution has often felt like an afterthought—tactical greenery dropped into a static environment. As we move further into 2026, the conversation has shifted from simply adding...
Executive Summary For architects, engineers, and builders, specifying site furnishings like planters is far from an aesthetic afterthought; it is a critical structural decision. The choice between traditional concrete and modern fibreglass-reinforced polymer (FRP)...
Choosing the right material for custom planters is critical for balancing aesthetics, durability, and budget. This guide compares steel, wood, GRC (Glass Reinforced Concrete), and fibreglass, helping specifiers like architects and landscapers make informed decisions....
Lightweight concrete planters, also referred to as GRC (Glass Reinforced Concrete) or lightweight cement pots, have become an increasingly popular choice for our clients at Sigma Planters. So much so that you will see our most extensive range of shapes and sizes is...
Concrete planter boxes can be a valuable addition to the landscape architecture of public spaces. These sturdy and versatile structures can be used to add greenery and natural beauty to otherwise dull and lifeless urban environments. Not only do concrete planter boxes...