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PLANT!T Vermiculite is a sterile mineral additive designed for maximum water retention and nutrient management. Its high Cation Exchange Capacity stores essential minerals, preventing leaching. Ideal for seed germination and cuttings, it maintains consistent moisture and humidity for vigorous plant growth and healthy root development.
Optimise your growing environment with PLANT!T Vermiculite, a premium-grade, natural micaceous mineral that has been expanded at high temperatures to create a sterile, ultra-lightweight growing medium additive. Unlike other additives that focus purely on drainage, Vermiculite is the gold standard for moisture retention and nutrient management. Its unique plate-like structure acts as a reservoir, holding onto water and essential minerals until your plants need them most. This makes it an indispensable tool for starting seedlings, rooting cuttings, and improving the performance of potting soil or coco coir blends.
Key Benefits of PLANT!T Vermiculite
- Exceptional Water Retention: Acts like a sponge to hold moisture within the root zone, significantly reducing the frequency of watering and protecting plants against drought stress.
- High Cation Exchange Capacity (CEC): Naturally attracts and holds onto nutrients like potassium, magnesium, and calcium, preventing them from leaching away and ensuring they remain available for vigorous plant growth.
- Sterile and Safe: Being kiln-fired, it is completely free of weeds, pests, and pathogens, providing a clean start for sensitive seeds and young plants.
- Improved Soil Texture: When mixed with heavy clay or sandy soils, it helps to aerate the substrate while maintaining the necessary hydration levels for healthy root expansion.
- Permanent Structural Integrity: It does not rot or deteriorate, meaning it provides long-term benefits to your indoor garden or outdoor beds without breaking down over time.
How to Use PLANT!T Vermiculite
PLANT!T Vermiculite is incredibly versatile and can be used on its own or as a strategic amendment to other media.
- For Seed Germination: Use Vermiculite on its own or mixed 50/50 with a propagation soil like Biobizz Light-Mix. Its ability to maintain consistent moisture levels ensures a higher germination rate for even the most delicate seeds.
- For Rooting Cuttings: Create a mix of 50% Vermiculite and 50% PLANT!T Perlite. This combination provides the perfect balance of hydration and aeration, encouraging rapid root strike without the risk of the medium drying out too quickly.
- As a Soil Amendment: Mix into potting soil or Coco Coir Substrates at a ratio of 25-50% to increase water-holding capacity. This is particularly effective for thirsty plants or in environments where temperatures are consistently high.
- Seed Covering: After sowing seeds, use a thin layer of fine Vermiculite to cover them. This helps maintain the high humidity required for germination while still allowing light to penetrate if necessary.
PLEASE NOTE: The 100 litre bags can only be shipped to Mainland UK, incurs a heavy item surcharge and is excluded from our free shipping offer.
Available in 10 litres and 100 Litres.
Frequently Asked Questions
What is the difference between Vermiculite and Perlite?
While both are volcanic/mineral additives, they serve different purposes. PLANT!T Vermiculite is used to increase water retention and hold onto nutrients. PLANT!T Perlite is used primarily to improve drainage and aeration. For most growers, a mix of both provides the ultimate balance of air and moisture.Does Vermiculite contain any nutrients?
Vermiculite itself is largely inert but contains small amounts of magnesium and potassium that are slowly released. However, its real strength is its Cation Exchange Capacity, which allows it to "grab" nutrients from your base nutrients and release them to the plant as needed.Is Vermiculite safe to use for edible plants?
Yes, PLANT!T Vermiculite is a natural, non-toxic mineral that is perfectly safe for use with vegetables, herbs, and fruits. It is sterile and chemically neutral, ensuring no harmful substances interfere with your organic or mineral-based cultivation.Can I reuse PLANT!T Vermiculite?
Yes, you can reuse it, but it must be handled carefully. Because Vermiculite has a softer structure than clay pebbles, it can be crushed if handled roughly. To reuse, remove old roots and sterilise the medium using a product like Canna Flush or a mild peroxide solution to ensure it is free from previous plant pathogens.SKU: 1083Free delivery on orders over £60*
- UK Mainland onlyStandard Delivery £4.95
- Heavy / Large item surcharge £2 per item
- 1-3 Days**
- UK Mainland onlyExpress Delivery £8.95*
- Next Working Day**
- UK Mainland onlyScottish Highlands £15.95*
- 2-5 Days***Can not be used with Heavy / Large items
**If ordered on a working day before 2pm cut off (Saturday and Sunday are not classed as working days).Please See Delivery and Returns page for more details.