A 3 liter bag filled with worm castings sitting ontop of worm castings.
Worm castings
A zoomed in picture showing worm castings.
A 3 liter bag filled with worm castings sitting ontop of worm castings with a hand ontop of the bag.

Worm castings

Regular price€7,99
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We guarantee a 100% satisfaction! We do our utter best to give you healthy plants and amazing products. If for some reason we fail to do this, just contact us via the green "help" button on the bottom left and we will find a solution.

About Worm castings
Worm castings in a hand

Organic worm castings to create your own soil mixture. By adding it to the soil it will provide your plants with all the nutrients it needs to grow big and healthy. The fertilizer is great for any houseplant! Because of the increased amount of nutrients and organic matter it is superior to regular compost.

   Slow-release fertilizer for plants
   Superior to compost
   Improves microbial life and adds organic matter

**Our worm castings are so fresh, that sometimes there can be live worms in there. Do not worry, they are completely harmless!**

Our worm castings come in convenient and resealable bags, preventing the material from drying out. 

Benefits of organic compost
Unlike chemical fertilizers, worm castings release their nutrients slowly. Chemical fertilizers are usually quick-release and create a surplus in nutrients, followed by a drop. Due to the microbial life in the worm castings there is a constant steady supply of nutrients. Chemical fertilizers are very prone to water-washing, by watering the soil a lot of nutrients get dragged out of the soil medium and away from the roots. Worm castings is very resistant to this phenomenon

Microbial life
The bacteria and fungus naturally present in the worm castings create a strong basis for a healthy plant. The soil is an ecosystem in itself and there is a constant exchange and flow of nutrients, minerals and other organic components. The microbial life helps plants with the uptake and regulations of the macro- and micronutrients. 

To learn more about worm castings, read our blog.


While the names of the mixes are great guidelines, they don't cover all species. To help you with this we have created the SYBASoil guide!

A 5 Liter bag will fill about 10x 10cm pots. Have a look at this handy infographic.

Our packaging is completely recyclable. The labels are made of kraft paper and can be composted. The bag's can be either re-used or disposed with your local plastic recycling service.

Customer Reviews

Based on 3 reviews
Five star product

I can highly recommend sybotanica.I purchased worm castings and perlite and have to say I’m extremely pleased with the products both quality and price. Delivery was extremely fast considering we live in Ireland I wasn’t expecting it to arrive as quickly as it did. I have already purchased again from Sybotanica. One very happy satisfied customer

Sharon Lehner

Exactly what I needed . Thanks for a speedy service and a high quality service.


Fast delivery, product as described, thank you so much!

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