What is Vermiculite

Vermiculite is a naturally occurring non-toxic Magnesium Alumino Silicate mineral, when heated at a controlled rate, it expands to give a sterile structure, capable of absorbing large amounts of water. Read more about vermiculite at Gardening Know How.

Benefits

• Ideal for seed germination, pricking out and houseplant compost.
• Absorbs and holds nutrients.
• Ensures moisture is held near the roots.
• An excellent insulator, it reduces the fluctuations of temperature when used as a seed covering.