Covamat Plus™ is an advanced erosion control blanket designed to stabilise slopes and embankments while promoting vegetation growth. Made from a quilted blend of straw and/or coir fibres, these organic, biodegradable mats are available pre-seeded or non-seeded with a variety of seed mixes tailored for diverse soil and climatic conditions. Incorporating slow-release fertiliser, beneficial micro-organisms, and mulches, Covamat Plus™ enhances poor soils and protects against surface erosion for up to 36 months.
These blankets provide excellent mechanical protection for freshly-soiled embankments, riverbanks, watercourse linings, balancing ponds, reinforced soil slopes, and natural monuments. Covamat Plus™ is available in three types—100% straw, 50/50 straw and coir, and 100% coir—each suited to different slope gradients, from gentle (up to 30°) to steep (over 45°). Their unique composition supports strong root development, encourages rapid ground cover, and improves biodiversity while offering a natural, sustainable solution for erosion control.
Features & Benefits:
Biodegradable & Organic: Fully decomposes, enriching soil with organic matter.
Pre-Seeded or Non-Seeded Options: Flexibility to suit project requirements and soil conditions.
Integrated Fertiliser & Micro-Organisms: Slow-release nutrients improve soil health and plant growth.
Versatile Fibre Blends: Straw, coir, or mixed fibres designed for specific slope gradients and stability needs.
Effective Erosion Protection: Shields soil from rainfall impact, surface runoff, and wind erosion.
Long-Term Durability: Designed for degradation periods up to 36 months, depending on fibre composition and reinforcement mesh.
Customisable Seed Mixes: Multiple seed options tailored for salt resistance, drought tolerance, and fast ground cover.
Suitable for Various Applications: From road ditching and landscaping to watercourse lining and wildflower establishment.
Applications:
Slope and embankment stabilisation up to 45°+ gradients
Riverbanks, lake edges, and watercourse lining
Balancing ponds and reinforced soil facing
Roadside ditching and erosion prevention
Establishing wildflower meadows and natural habitats
Protection of monuments and sensitive natural sites
Available Types & Roll Sizes:
Type Fibre Composition Weight (g/m²) Suitable Slope Gradient Roll Sizes (m)
Type 1 100% Straw Fibres 700 – 750 Up to 30° 1.2 x 25 / 2.4 x 25
Type 2 50% Straw / 50% Coir 700 – 750 Up to 45° 1.2 x 25 / 2.4 x 25
Type 3 100% Coir Fibres 700 – 750 Over 45° 1.2 x 25 / 2.4 x 25
Seed Mix Options:
Covamat Plus™ offers multiple pre-specified seed mixes tailored for different soil and climate conditions, including flood-prone areas, poor soils, dry or stony ground, and salt-resistant varieties. Custom site-specific seed mixes can also be incorporated for orders over 500m².
Seed Mix 1A, 1C: Flood endangered, strong root development, salt tolerant
Seed Mix 2A, 2B, 2C: Fresh/moist or dry/stony ground with erosion protection
Seed Mix 1P: Designed for very poor soil conditions and difficult vegetation establishment
Installation Guide:
For best results, lay the Covamat Plus™ blankets on prepared soil surfaces and secure firmly with appropriate pegs or staples. Once installed, irrigate thoroughly to activate the slow-release fertiliser and micro-organisms. Regular watering during establishment is essential to promote rapid vegetation growth and maximize erosion protection. Detailed installation guidance is available on request. 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.

Specification Value Notes
Blanket Thickness 10 – 15 mm Quilted straw/coir fibre mat
Fibre Composition 100% Straw / 50/50 Straw-Coir / 100% Coir Depending on type
Weight 700 – 750 g/m² Approximate
Roll Dimensions 1.2m x 25m or 2.4m x 25m Depending on type
Degradation Time Up to 36 months Varies by fibre composition & mesh
Fertiliser Content Granulated slow-release Organic fertiliser integrated
Seed Mix Options Multiple (1A, 1C, 2A, 2B, 2C, 1P) Custom mixes available for >500m²
Suitable Slope Angle Up to 30° (Type 1), Up to 45° (Type 2), Over 45° (Type 3)