Transform any flat or gently sloping roof into a thriving, low-maintenance green space with our Sedum Green Roof Trays, also known as Sedum cassettes. Designed specifically for extensive green roof installations, these ready-to-install trays provide an all-in-one system that combines a drainage layer, filter layer, lightweight substrate, and mature sedum vegetation into a single, easy-to-lay cassette.
Each tray contains a diverse mix of at least eight drought-tolerant sedum species, pre-grown for immediate coverage and visual impact. The well-rooted sedum plants are low-growing and resilient, making them perfectly suited for the exposed, challenging conditions typical of rooftops. Their adaptability and low nutrient requirements mean these trays need minimal maintenance, while offering outstanding environmental benefits such as increased biodiversity, rainwater attenuation, thermal insulation, and aesthetic value.
Installation is quick and simple—just lay the trays in your desired configuration, no specialist tools or materials required. Thanks to the modular design, trays interlock cleanly and can be used to cover anything from a small garden shed or house roof to full-scale commercial buildings, warehouses, or offices.
These sedum cassettes are an ideal solution for green roof contractors, landscapers, builders, urban designers, and council planners looking to meet Biodiversity Net Gain, SuDS, and urban greening requirements. Suitable for both new builds and retrofit projects, they offer a sustainable and attractive solution to increase green space in urban environments.
Key Benefits and Applications
Instant green roof coverage with no growing-in period
Pre-grown with minimum 8 sedum varieties for biodiversity and colour variation
Integrated system – includes drainage, filter, substrate and vegetation
Lightweight construction ideal for extensive roof designs
Drought-tolerant, low-maintenance sedum species
Simple installation – trays click together in any configuration
Ideal for:
Residential roofs, garden offices, sheds and garages
Commercial and industrial buildings
Office and school buildings
Local authority and community green roof projects
SuDS, biodiversity and urban greening schemes Tray Dimensions: 495mm (L) x 460mm (W) x 80mm (H)
Sold per individual tray Please Note:
This product is dispatched directly from our trusted supplier’s warehouse. While we aim to keep product availability as accurate as possible, we do not have live stock control for these items. Availability is subject to change, and delivery can take up to 15 working days, depending on stock levels at the time of order.
Tracking information will be provided where available, but please note this is dependent on the supplier’s shipping process. If you have any questions about lead times or delivery, our team is happy to help before you place your order.

Product: Sedum Green Roof Tray Cassette
Unit Dimensions: 495mm (Length) x 460mm (Width) x 80mm (Height)
Coverage per Tray: Approx. 0.23m²
Vegetation: Pre-grown with a minimum of 8 sedum species
Layers Included:
Built-in drainage layer for capillary action
Filter layer to prevent substrate loss
Lightweight, purpose-made substrate
Mature sedum vegetation
Installation: Simple modular layout – trays click together on roof surface
Maintenance: Minimal – occasional weeding and watering in dry periods
Applications: Extensive green roofs, new builds, retrofits, domestic & commercial projects