Green Slate 20mm
Available in: Bulk Bag, Large Pack
Fish friendly: Yes
Stone size: 20mm
Green Slate Decorative Aggregate is a natural 20mm slate in soft sage and blue-green tones with hints of rust and plum, and a distinctive flat, angular shape. Muted when dry and richly green when wet, it’s perfect for borders, paths, water features, and pots. Hard-wearing, free-draining, and available in bulk bags or large packs.
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| Pack Size |
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Bulk Bag |
Large Pack |
Description
Bring a soft, natural touch of colour to your outdoor space with our Green Slate Decorative Aggregate. These distinctive 20mm slate pieces display beautiful sage and blue-green tones, with occasional hints of warm rust and plum running through the angular, plate-like flakes. The result is a fresh, characterful finish that adds a calming, earthy feel to any garden, border, or feature area, with a look that’s both natural and quietly elegant.
The flat, layered slate pieces sit neatly together to create a sleek, low-profile surface full of subtle colour and texture. When dry, the slate has a soft, muted green tone; once wet, the colours come alive, deepening into richer greens and teals with a gentle sheen that shows off the stone’s natural beauty at its best.
Versatile and hard-wearing, this aggregate is ideal for a wide range of landscaping projects. Use it to dress borders and beds, create attractive pathways, top water features, or finish pots and planters with a fresh, contemporary layer. Green Slate works beautifully alongside greenery and planting, where its natural tones blend seamlessly into the garden, and provides a lovely contrast against pale paving, timber, and grasses.
As well as looking great, slate is low-maintenance and free-draining, helping to suppress weeds and keep surfaces neat all year round. The flat 20mm flakes knit together well to give excellent ground coverage and a tidy, attractive finish that works as well in feature areas as it does across larger spaces.
Supplied in convenient bulk bags or large packs, our Green Slate Decorative Aggregate makes it easy to order exactly the right amount for projects of any size. As a guide, we recommend a coverage depth of around 40–50mm for paths and borders.
For help with quantities and coverage, please view our aggregate calculator (click here).