7lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water — Open-Box

🌵HELP GROW BETTER: Black lava rocks as a soil additive in the art of bonsai. Just place the lava rocks at the bottom of the pots, so the water can pool without drowning the roots. Lava rocks contain trace minerals that plants need to grow and help them grow strong.

🌱IDEAL DRAINAGE: Lava rocks for plants are porous and will absorb and slowly release excess water back to the plant. Perfect for preventing root rot.

🌿SMALL SIZE: The black lava rocks measure 1/8 to 1/4 inches and weigh a total of 18 pounds. It is ideal for mini potted plants and aquarium decor. The lava rocks for plants are natural and free of chemical additives, with a natural color that does not fade.

🌹MULTIFUNCTIONAL: Volcanic rocks aren’t just for decorative landscaping, gardens, patios, ponds, and fish tanks—they’re also used in fire pit bowls, gas logs, and fireplaces.

🌼EASY TO MAINTAIN: Dry and wet crushed lava rock show different colors, ensuring quick drainage while retaining some moisture. They also provide mineral supplements.

These volcanic fire rocks are the ultimate soil solution for plants! Crafted from natural lava stone, these black pebbles boost drainage in outdoor gardens, indoor pots, and even aquarium tanks. Mix 'em into potting soil to prevent root rot—succulents, cacti, and orchids thrive in the airy, lava-laced texture. Use as a decorative top layer for bonsai pots or terrariums, or toss into fire pits for a rugged, natural look. Lighter than clay but tougher than bark, these small stones won’t break down over time. Perfect for blending with sand, gravel, or pumice in DIY soil mixes—they let water flow while keeping roots oxygenated. Whether you’re sprucing up a glass terrarium or prepping a succulent garden, these lava rocks bring both function and fiery decor to any plant setup!