Shell On Earth – "Super Crush" Whelk Shells
🚚 Free UK shipping on orders over £50 🪴
Super Crushed Whelk Shells by Shell On Earth are an extra-fine decorative shell mulch made from recycled, washed and dried whelk shells. Their smaller particle size makes them ideal for top dressing houseplants, terrariums, bonsai and succulent displays, creating a clean, natural finish.
As well as looking beautiful, these natural shells can help improve soil drainage and airflow when mixed into compost. They are particularly suited to cacti, succulents, bonsai and most houseplants, but can also be used outdoors in containers, borders and garden beds.
Uses:
- Plant pot and terrarium dressing
- Bonsai and succulent displays
- Top dressing for houseplants
- Drainage layer to aid runoff
- Surface mulch to help retain moisture
- Natural, gentle weed and pest control
This is a natural product from the sea, carefully packaged in a reusable and fully recyclable paper bag.
Contents: Approx. 1kg
Material: Recycled crushed whelk shells
shipping options
Standard UK Delivery
Tracked delivery within 1–3 working days to most UK postcodes (excl. Northern Ireland).
Orders under £15 – £5.95
Orders £15–£34.99 – £4.95
Orders £35–£49.99 – £3.95
Orders £50+ – FREE
Local Hand Delivery (Edinburgh)
£7.95 flat rate. Monday–Friday delivery to EH1–EH22, EH28 and EH29. Select your delivery date at checkout. Required for large plants, terrariums and fragile items.
Store Pickup
Free collection within 1 hour from our St Vincent Street shop (EH3 6SH).
Choose options
meet the plant gurus
At grow urban, we're passionate about helping people create greener, happier homes through plants.
From our Edinburgh plant shop, our team of Plant Gurus carefully hand-pick every plant and botanical product we sell, ensuring it arrives looking its very best.
Whether you're searching for your first houseplant or adding to an ever-growing collection, we're here to share expert advice and help your plants thrive.
customer reviews
what to expect when you order
We offer happy, healthy plants that are carefully hand-picked and delivered straight to your door from our plant shop.
We will deliver to you in recyclable boxes and we use paper materials and compostable bubble wrap! Our Plant Gurus will ensure that your plants are safe and secure for the journey to their new home!