Stone Monolith SM63 is a superb small Portland Stone boulder with natural rustic edges and faces and a light vibrant colour palette of Cotswolds style creams and yellows, perfect in a border of a traditional cottage garden. Portland Stone also suits contemporary designs, and contrasts beautifully when matched with Welsh slate chippings and careful planting choices.

Reservoir & Pump available in the Basket.


1 in stock

Water Feature Accessories

Add a Large Reservoir Pack to complete the water feature functionality of this natural stone. Slate Chippings in hand 18kg bags are a popular accessory.

Reservoir Pack | Welsh Slate Water Features
Large Reservoir Pack

Reservoir, pump, hose, clip and flow valve regulator for completing medium and large sized water features.

Add to basket
Slate Chippings SCB1
Slate Chippings Handy Bag

18kg of small mixed sized slate chippings.

Add to basket
Dimensions620 × 460 × 200 mm

Cream, White


35mm (water flow)


Portland Stone

FREE DELIVERY to standard UK postcodes, usually within 14 working days.

Contact us to discuss special requirements for delivery, remote postcode areas and international shipping quotes. Standard consumer rights apply.

Delivery & Returns

These additional products are required to complete a water feature installation: a reservoir, pump, hose & jubilee clips. All available to buy in the Basket when purchasing a stone pyramid.

Our blog contains extensive guides for how to install stone pyramids and water features, including a detailed step by step and links for the recommended additional third party products.

Stone Pyramid Install Guide    

Water Feature Install Guide

Stone Monolith SM63 is a stunning Portland Stone garden ornament hand picked from a quarry in Dorset, on the isle of Portland. This has been core drilled and transformed into a Water Feature with our additional accessory pack. Portland Stone is perfect for achieving soft subtle natural stone tones, similar to those found in the rock garden at RHS Wisley in Sussex. Delivery can be arranged with our courier, alternatively this can be collected from the workshop, strictly by appointment only. Slate Monoliths of this size and shape are getting increasingly difficult to source. Our Blog has lots of great gardening ideas and guides, as well as articles about Historic Sites to visit in Wales and England.

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