Molly's Red Lava Rock - Screened 6-9 mm Lava Rock for Top Dressing, Drainage and Custom Blends
Molly's Red Lava Rock - Screened 6-9 mm Lava Rock for Top Dressing, Drainage and Custom Blends
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Soil-free component, 100% single material.
Quick answer: what is Molly's Red Lava Rock?
- What it is: natural red lava rock (scoria), screened to 6 to 9 mm (1/4 to 3/8 in).
- For: top dressing, drainage layers and custom mixes for houseplants, aroids, succulents, cacti and bonsai.
- In the bag: 100% red lava rock, 3 dry quarts (3.3 L), in a resealable stand-up bag. Fills about seven 4-inch pots.
- Durable and reusable. Rinse before use to remove natural dust.
- A single component, not a potting mix. For a ready-to-use blend, choose one of Molly's potting mixes.
Red lava rock, also called scoria, is a porous volcanic rock formed when gas is trapped in cooling lava and leaves small holes behind. In a potting mix, that porous structure holds moisture and releases it slowly to plants. Molly's Red Lava Rock is 100% natural, with no dyes, additives or fillers.
Use it to build a mix around what your plants need. It's screened to remove excess dust and to a consistent 1/4 to 3/8 inch (6 to 9 mm) size, which gives you more control over structure, drainage and aeration. Its deep red color makes a striking top dressing against green foliage.
Why growers choose it
- Screened 1/4 to 3/8 inch (6 to 9 mm). Screened to remove excess dust and deliver a clearly stated horticultural grade, for a predictable, consistent size.
- Good value. A 3 quart (3.3 L) bag fills about seven standard 4-inch pots. The resealable bag stands up, so it's easy to pour and store.
- Custom mixes. Use with your potting mix or blend with other components for houseplants, aroids, succulents, cacti and bonsai. It adds mineral structure for drainage and airflow.
- Decorative top dressing. The deep red color gives pots a clean, finished look, and a top layer helps hold moisture in the mix.
- Drainage layer. A porous layer for the base of terrariums and pots.
How to use
- Rinse before use to remove natural dust.
- For top dressing, add a thin layer to the surface for a clean, finished look.
- For drainage layers, add a layer at the base of terrariums and pots.
- For custom mixes, blend it into your own mixes where you want extra structure, airflow and fast drainage.
Specifications
- Material: 100% red lava rock
- Particle size: 6 to 9 mm (1/4 to 3/8 in), screened
- Bag size: 3 dry quarts (3.3 L), filled by volume
- Coverage: about seven standard 4-inch pots (varies with pot shape and use)
- Packaging: resealable stand-up bag
Where it fits with Molly's mixes
Molly's potting mixes are ready to use and already blended for air, moisture and drainage, so you don't need to add anything to them. Molly's soil-free components are single materials for growers who want more ways to grow, propagate and customize. For a complete mix, see Molly's Aroid Mix, Molly's Succulent Mix or Molly's Orchid Mix.
Frequently asked questions
What size is Molly's Red Lava Rock?
Do I need to rinse it?
Can lava rock be used in a terrarium?
Does red lava rock help with drainage and aeration?
Does red lava rock hold moisture?
Is it suitable for succulents and cacti?
Can I use it outdoors?
Can I reuse it?
How many pots does a bag fill?
Do I need to add lava rock to Molly's mixes?
Care and handling: Keep out of reach of children and pets. Not for consumption. Avoid inhaling dust and use in a well-ventilated area. Store dry and reseal after use.
WARNING: This product can expose you to chemicals including crystalline silica, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
