Plum Slate 40mm Bulk Bag

40mm Plum Slate – Premium Large Slate Chippings for Borders, Ground Cover and Landscaping

40mm Plum Slate is a striking decorative aggregate known for its rich purple and deep plum tones that instantly enhance any garden or landscape design. Larger and chunkier than the 20mm size, these slate chippings provide a bold, textured finish that works beautifully in borders, rockeries, around planting areas and in low-maintenance garden schemes. Their dramatic colour creates a luxurious, modern look suitable for both traditional and contemporary outdoor spaces.

This natural slate is long-lasting, low-maintenance and environmentally friendly. Thanks to its flaked shape, 40mm Plum Slate lies flat and settles into a stable layer that stays tidy with minimal movement. When wet, the colour deepens into an intense, almost burgundy tone, giving your landscape rich colour variation and visual depth throughout the year.

40mm Plum Slate is ideal for decorative ground cover, helping reduce weed growth when used with a membrane and retaining moisture in soil to support healthier planting. The larger size also makes it particularly effective for rockeries, water features and wildlife-friendly areas where a more rugged, natural look is desired. It’s safe for ponds and streams once washed, adding deep colour without affecting water quality.

Supplied in bulk bags, our 40mm Plum Slate is clean, consistent and ready for use in gardens, commercial landscapes and large outdoor projects.

Key Benefits:

• Rich plum and purple tones for a bold decorative finish

• Larger 40mm size ideal for borders, ground cover and rockeries

• Natural slate flakes lie flat for a tidy, stable surface

• Colour deepens beautifully when wet

• Low-maintenance, long-lasting and environmentally friendly

• Helps suppress weeds and retain soil moisture

• Suitable for ponds, streams and water features once washed

• Supplied in bulk bags for excellent value and coverage

Typical Uses:

• Decorative garden borders and planting areas

• Ground cover in low-maintenance garden designs

• Rockeries and feature garden areas

• Water features, ponds and streams

• Landscaping around patios, seating areas and pathways

• Wildlife and natural-style garden projects

Installation Tips:
Lay 40mm Plum Slate at a depth of around 50–60mm for best coverage and stability. Use a weed membrane underneath to minimise maintenance and keep your slate looking clean. Lightly rinse the slate after installation to remove natural dust and reveal its full, rich colour.

Why Choose Us?
We supply premium 40mm Plum Slate sourced from trusted UK quarries. Clean, consistent and visually stunning, it provides a durable, high-quality decorative finish for any garden or landscaping project. With reliable delivery and excellent material quality, you can create a long-lasting outdoor space with confidence.