Vermiculite
Vermiculite is a processed natural mineral that serves as a lightweight soil conditioner, effectively enhancing moisture retention, aeration, and nutrient availability in growing media.
Также говорят: agri-vermiculite, expanded mica
In agriculture and horticulture, vermiculite is primarily used to improve soil structure by keeping it loose and promoting root development. It acts as a sponge, storing water and essential nutrients and releasing them as the plant requires them, which is particularly beneficial for containers and seed starting.
It is commonly applied during seedling propagation, cutting rooting, and when preparing custom potting mixes. The material helps maintain a consistent thermal environment for the roots, mitigating the shock of temperature fluctuations.
A common mistake is using fine-grade vermiculite in heavy, dense soils where it may lose its structural porosity too quickly. Users should also avoid over-compacting the soil mix after adding the mineral, as this negates its aeration benefits.