Soil Sunrise Horticultural Charcoal for Indoor Plants — 12-Quart Hardwood Chips, Improves Drainage & Odor Control

Soil Sunrise Horticultural Charcoal is a 100% hardwood, additive-free soil amendment sold in a 12-quart bag for improving drainage, aeration, and odor control in potted plants, orchids, and terrariums.

Made from pure hardwood charcoal chips roughly 1/2 inch long, this horticultural charcoal is designed specifically for indoor gardening. Free of chemicals, colorings, or binders, the material helps reduce excess moisture, supports air movement through potting mixes, and can help reduce stale smells in enclosed displays. The 12-quart size is measured to amend one 10-inch (3-gallon) container or three 8-inch pots, giving you practical coverage for repotting or refreshing multiple plants.

How does Soil Sunrise charcoal improve potting mixes?

Charcoal increases porosity in compact potting soils, which speeds drainage and reduces waterlogging around roots. Its firm chips maintain small pockets of air while resisting rapid breakdown so the structure lasts through seasons of use.

• Half-inch chip size prevents compaction while fitting easily into standard mixes.
• Hardwood composition resists early decomposition.
• Helps prevent soggy soil in shallow pots and terrariums.

Will this charcoal benefit orchids, terrariums, or succulents?

Yes — the physical properties of horticultural charcoal are particularly useful in systems that demand clear airflow and controlled moisture. For orchids, it helps keep medium aerated; for terrariums, it can reduce odor and improve visual freshness; for succulents, it promotes rapid drainage between waterings.

• Orchids: mix into bark or use as a thin drainage layer.
• Terrariums: place a small layer under substrate to trap impurities and limit smells.
• Succulents: blend with potting soil to speed water runoff.

How much charcoal should I use and how is it applied?

The 12-quart bag is sized to amend or top-dress several pots: one 10"/3-gallon pot or three 8" pots. Application varies by plant needs—use smaller percentages for everyday houseplants, larger proportions for plants requiring exceptional drainage.

• General amendment: 10–20% by volume mixed into potting soil.
• Drainage layer: 1–2 inches at pot base for containers prone to waterlogging.
• Terrarium odor control: sprinkle a thin layer under substrate.

Is this product safe and what are its ingredients?

Soil Sunrise horticultural charcoal contains only 100% hardwood charcoal chips—no chemicals, colorings, or additives are included. Its straightforward composition makes it suitable for a wide range of indoor planting uses when used as a soil amendment or substrate component.

• Ingredients: pure hardwood charcoal chips ~1/2" long.
• No added fertilizers, pesticides, or synthetic binders.
• Packaged dry for direct use in potting mixes and terrariums.

Who is this for: This product suits indoor gardeners who repot orchids, maintain terrariums, or grow houseplants that benefit from improved drainage and reduced stale odors. It's also a practical choice for hobby growers who prefer natural, additive-free amendments and need a reliable, long-lasting structural material for potting mixes. Whether you're refreshing a single pot or preparing several containers, the 12-quart bag offers convenient coverage and a consistent chip size tailored for potted plant use.