Organic House

Vermiculite is a naturally occurring mineral with many uses, including:

Gardening
Vermiculite improves soil quality by aerating it, retaining water and nutrients, and promoting healthy root growth. It can be used in raised beds, in-ground, and in containers. You can mix it with soil at a ratio of ⅓ to ½.

Seed germination
Vermiculite can be used alone or mixed with soil or peat to germinate seeds. For large seeds, mix them with vermiculite in a bag and keep it in a warm place. When the seeds start to germinate, plant them in small pots or trays.

Hydroponics
Vermiculite can be used as a growing medium in hydroponic systems. It provides water and nutrient retention, aeration, and supports plant growth without soil.

Construction
Vermiculite is used in construction as loose-fill insulation in walls and attics. It can also be mixed with concrete to create lightweight, insulating materials.

Fireproofing and soundproofing
Vermiculite can be used in spray-on fireproofing for steel structures and to enhance soundproofing in walls and ceilings.

Other uses
Vermiculite is also used in the paint industry, as lubricants, and as a packing material.

Vermiculite is lightweight, non-toxic, sterile, and has a neutral pH.