In StockVermiculite
£13.01£14.45Save £1.44
In stock
Available from our Bristol shop
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Description
Vermiculite is a natural mineral that comes from Mica rock. Thanks to its vast surface area it is able to hold many times its own weight in water and so is an ideal substrate if you need to retain nutrients around the root zone. However, Vermiculite comes into its own when used in conjunction with Perlite, which does not retain water well. A 50/50 mix is a popular ratio that retains moisture but also allows plenty of oxygen to get to the roots.
A vermiculite mix is ideal for use in propagation and drip systems such as Wilmas. Greens supply the V3 or Medium grain type of Vermiculite which is fibre-free, completely non-irritant, inert, incombustible, non-abrasive, rot-proof, odourless and clean to handle without the slightest danger to face or hands. However, as with all fine materials, avoid inhalation of dust.
Supplied in a 10 litre bag.
Key facts
| Brand | PLANT!T |
|---|---|
| Type | Natural mineral from mica rock |
| Grade | V3, medium grain |
| Holds | Many times its own weight in water |
| Properties | Fibre-free, non-irritant, inert, incombustible, rot-proof and odourless |
| Sizes | 10 and 100 litres |
| Category | Soil Amendments |
How to use
Vermiculite holds water and nutrients around the roots. On its own it can stay too wet, so it is usually mixed with perlite, which drains freely. A 50/50 mix is a popular ratio: it keeps moisture in and still lets plenty of air reach the roots.
That mix suits propagation and drip systems such as the Wilma. Like any fine material, avoid breathing in the dust when you pour it. See all soil amendments.
Questions
Should I mix vermiculite with perlite?
Usually, yes. Vermiculite holds water and perlite does not, so a 50/50 mix keeps moisture in while letting air reach the roots.
Is it safe to handle?
Yes. It is fibre-free, non-irritant and clean to handle. As with any fine material, avoid breathing in the dust.
Growers’ guides
- Sowing Seeds Indoors: How to Germinate, Prick Out and Harden OffHow to germinate seeds indoors, choose a seed propagator, prick out and transplant seedlings, what to feed them and how to harden them off.
- Perlite vs Vermiculite: What They Are and When to Use EachWhat perlite and vermiculite are, how they differ, which to use for seeds, cuttings, soil and coco, and the soils and mixes we sell with perlite in them.
- Propagators and Cuttings: How to Root CuttingsHow to take cuttings that root: choosing a propagator, the starter plugs, Clonex rooting gel, which propagation light and tent, and when to open the vents.
