Lava Stone
$5.00
Lava stone can be used as substrate for terrariums, top dressing for your potted plants, or added to potting soil mix to add additional aeration, particularly important for bonsai.
This lava stone is a fine grind and deep black in colour.
Approximately 200g, enough for a small terrarium or top dressing for a 6 Inch plant pot.
Some top dressing ideas & inspiration: