40mm Plum Slate

The Stone Zone's 40mm Plum Slate is a natural garden stone and one of the standout choices in our best-selling decorative stones collection. Sourced from the natural quarries of North Wales, these slate stones are authentic and sustainable.

When dry, the stones have a subtle, dusty pink hue. However, once wet, they transform into a rich plum shade, revealing the deep purple tones that make them so popular. This vibrant color change adds an eye-catching touch to any garden space.

What sets Welsh Slate apart from pebbles and standard chippings is its unique shape and size. These stones are larger, flatter, and slightly angular, making them ideal for decorative garden features. Whether you're enhancing a rockery, adding texture to a water feature, or designing a striking garden border, these stones provide an instant uplift.

If you have a fishpond, these stones are an excellent choice—they’re completely fish-friendly and won’t harm aquatic life. However, due to their larger size and naturally brittle nature, 40mm Plum Slate is not suitable for use on driveways or pathways.

40mm Plum Slate Features

• Locally-sourced garden stone
• Great for garden borders
• Fish-Friendly; suitable for ponds

40mm Plum Slate for Your Garden

Our 40mm Welsh Plum Slate is the perfect addition to any garden in need of added color, texture, and those finishing touches that make a space truly special. These decorative garden stones bring a natural yet vibrant charm to your outdoor space, elevating its overall aesthetic effortlessly.

With their uniform 40mm size, Plum Slate stones are ideal for creating stunning decorative features or garden borders. They’re particularly popular for bordering garden elements such as patio paving or turf grass areas. Pairing these stones with our wide selection of paving options or lush artificial grass creates a modern and cohesive garden design that enhances any outdoor setting.

If you're thinking of sprucing up your front garden, 40mm Plum Slate is an excellent, low-maintenance option. For those who prefer a hassle-free garden, these stones provide an easy solution to keep your space visually appealing without the need for regular upkeep. Simply lay down weed fabric, top it with the slate stones, and you’ll achieve a clean, polished feature that stays looking fresh. This makes them particularly well-suited for areas with no foot traffic, where the goal is purely aesthetic charm with minimal effort.

Choose 40mm Welsh Plum Slate to add a timeless, natural finish to your garden while keeping maintenance to a minimum!

40mm Plum Slate for a Garden Pond

If you have a pond in your garden and want to enhance its appearance, our 40mm Plum Slate is the perfect choice to give it a refreshed and vibrant look. These stunning natural stones transform beautifully when wet, showcasing a deep, glossy plum color that adds elegance and charm to your pond area.

Thanks to their lime-free composition, these stones are completely safe for fish and other wildlife, making them ideal for use around ponds or water features. You can also use them to create a tiered or stepped effect within your water feature, adding depth and dimension to your design. This approach is perfect for achieving a whimsical, fairy-tale cottage garden aesthetic that feels both magical and natural.

Transform your pond into a striking focal point with 40mm Plum Slate, and enjoy the timeless beauty it brings to your garden!

How to Buy 40mm Plum Slate

Available Pack Sizes

20kg maxi bags 

850kg bulk bags

20mm Plum Slate is also available here

This stone can be collected for free at one of our depots in Wimborne, Bournemouth, Christchurch or Dorchester, or these garden stones can be delivered nationally to anywhere in the UK.

How to Create a Garden Pond 

Whether you're envisioning a sleek, contemporary water feature as the centerpiece of your garden or a rustic, natural-looking pond to attract wildlife, creating your own pond is a simple and budget-friendly project that anyone can undertake. Follow this step-by-step guide to bring your vision to life:

Step 1: Plan Your Pond’s Location

Start by sketching out a small blueprint of your garden and deciding where to place your pond. Be mindful of surrounding trees and bushes to avoid constant leaf debris. Ideally, choose a location that is partially shaded but still gets some sunlight. This helps keep the water cool while minimizing falling debris.

Step 2: Determine Size and Materials

Decide on the size and shape of your pond. For a ground-level pond, preformed plastic pond liners are a convenient option. Outline the shape on the ground using spray paint to mark the exact area. If you’re creating an elevated pond, wooden sleepers lined with plastic sheeting are a great choice for a sturdy, raised design.

Step 3: Dig and Prepare the Area

For ground-level ponds, use a spade to dig out the marked area to the desired depth. Use Scalpings to fill any uneven gaps and create a solid base for your pond liner.

Step 4: Add Water and Features

Fill your pond with water and consider adding a solar-powered water pump for a charming water feature or fountain. Flowing water not only looks appealing but also helps aerate the pond, keeping it fresh and inviting.

Step 5: Decorate Your Pond

Decide how to finish the area around your pond to match your garden's aesthetic. For a natural look, incorporate larger Rockery stones along with smaller decorative stones like Plum Slate to create a seamless blend with the landscape. To enhance the effect, add aquatic plants for greenery and texture, making your pond look like a natural garden feature.

Additional Tip:

As decorative stones are naturally sourced, some variation in color is expected. Occasionally, stones may arrive with dust—simply hose them down to reveal their true beauty.

By following these steps, you’ll create a stunning pond that enhances your garden’s charm and provides a relaxing, tranquil space to enjoy year-round!

Buy With Confidence

• Our 40mm Plum Slate can be purchased in 20kg maxi bags or bulk bags that weigh approx. 850kg
• Not sure how much you need? Use our quantity calculator and enter your garden width and length to find out how many maxi bags/bulk bags you need! 
• Please select the bag size you'd like to buy and add to your basket 
• Our aggregates will either arrive on a hiab lorry that can be used to lift the stone onto your garden, or it will arrive on a pallet for kerbside delivery; depending on your address
• You can choose free collection from one of our Depots or fuss-free, home delivery.

A Service You Can Rely On

• Our reliable service offers prompt delivery to any area in the UK
• Stone Zone is a family-run business that has been well-established since 1998
• Our efficient customer advisors can help you with your purchase
• We pride ourselves on offering a range of affordable garden supplies 

A Delivery Service Tailored to You

Our top-rated delivery service is flexible and reliable to suit you, however, it can cary depending on where you live. Click here for more information on our delivery service and if your postcode is classed as 'local' or 'national.'

Any questions? Use our live chat to speak to an advisor, alternatively, you can fill out an enquiry form or call us on 01202 874207.