Glossary
Vermiculite
Expanded mineral that retains water and cations. Ideal for overly dry terraces.
Vermiculite looks like golden perlite and behaves the opposite way: it holds water and releases it slowly. In a July attic, it is an ally; in a shady patio, it can be excessive.
Uses
Covering layer in seedbeds, mixes for plants that do not want extreme drought, and a complement to coconut coir. It provides some cation exchange capacity, unlike perlite.
Dose
10-20% in potting mixes. 100% only for specific germination of fine seeds. It compacts more than perlite over time: do not base all your substrate on it.
What we recommend at Control Garden
Packs of vermiculite alone or with clay and perlite. Combine it; do not use it as the only “miracle substrate”.
Recommended products
View catalogue
FAQs
Is it suitable for cacti?
Does it deplete?
Is it the same as aquarium mica?
Keep reading
All universesPerlite
Expanded volcanic rock that aerates the substrate and prevents compact root balls.
Agricultural Hydrogel
Polymer that stores irrigation water and releases it to the roots when the substrate dries.
How to Mix Coco Coir and Perlite
Drainage substrate recipes with coco, perlite, vermiculite, and clay based on the crop.
Seedling Tray
Container and technique for germinating with moisture control and separated roots.