Worm castings used in terrariums
Vermicast fertiliser for ecosystems

Worm Castings

Regular price£1.50
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Processing Time

1-2 business days

Shipping Time

UK: Tracked 1-3 days

Read our shipping policy

  • Free UK shipping on orders over £50
  • In stock, ready to ship
  • Inventory on the way

Vermicast (earth-worm castings from worm beds) is a natural, organic and sustainable fertiliser - ideal for indoor planters, garden beds, terrariums and vivariums.

Worms feed on and break down organic matter, and have in turn created a nutritious compost full of healthy microbes and bacteria.

This substrate works perfectly in combination with orchid bark and coco coir.


  • Faster root growth
  • Develop stronger roots
  • Increased germination rates (for seedlings)
  • Increased resistance to pests
  • Slow-release nutrients that keep your plants healthy over time


  • These worm castings contain a high volume of nutrients, so use only between 10-40% relative to the rest of your potting mix.

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So, What Does What?

Each layer serves a purpose.

Leca, sand and gravel can function as drainage elements and top-level decoration.

Activated charcoal absorbs harmful toxins and chemicals that may find their way into your ecosystem.

And finally, substrates provide nutrition, nutrient delivery, water retention and aeration - to make your ecosystem whole.

White Gravel For Terrariums
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Postage & Packaging

All of our deliveries are tracked end-to-end and we offer free UK
on orders over £50.

We'll always use biodegradable, recycled
or recyclable packaging.

Also, we go two steps further by planting a tree for every
order - as well as off-setting carbon emissions.

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