Biochar Booster
The Foundation for Resilient Growth
Rosy Soil's Biochar Booster is a functional amendment designed to improve soil structure at the root level. Made from high-quality, eco-friendly organic materials, biochar increases water retention and nutrient absorption while improving aeration. It is a permanent addition to your soil that does not break down over time. Whether you are tending to a vegetable garden, indoor houseplants, or a collection of succulents, adding biochar to your garden soil helps plants grow strong and resilient. Ideal for those seeking to enhance their organic garden soil with a professional-grade amendment.
Shipping & Returns
Rosy Soil is part of our curated assortment of trusted partners. These items ship directly from the Rosy Soil studio to your door. Please note that soil and plant food are non-returnable. You've chosen your planters with intention. Now the soil inside them can be just as considered.
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OUR VALUES IN EVERY PLANTER
Materials & Making
High-fired vitreous stoneware—dense, glassy, and engineered for durability. Glazed inside and out, including a lighter interior glaze that protects the clay body and supports an even exterior finish. Hand-finished; subtle variation in glaze and tone is expected.
Sizing & Fit (Grow Pot System)
Our planters are named for the grow pot size they’re designed to hold, which makes sizing intuitive whether you’re potting up or dropping in. Dimension drawings are provided per size.
If you’re between sizes, size up for a more comfortable fit—especially if you’re planting directly.
Indoor / Outdoor Performance
Furniture-grade pottery made for indoor/outdoor living. Frost-proof and engineered to withstand seasonal temperature changes. As with all outdoor planters, avoid leaving standing water in situations where it can freeze.
Frequently Asked Questions
Our planters are named for the grow pot size they’re designed to hold. Check the size printed on your nursery pot, or measure the top rim, then match to the planter size name. If you’re between sizes, size up for an easier fit.
Cachepot (no drainage): Designed to hold a standard nursery grow pot. Water the plant at the sink in its grow pot, let it drain fully, then return it to the cachepot. After watering, leaving the grow pot out for a few minutes helps prevent excess water from collecting at the bottom.
Planter with drainage + saucer: Designed for traditional planting with a drainage hole and a matching saucer (included). Water thoroughly until excess runs through, then let it finish dripping before setting it back on the saucer. Our saucers are channeled to support airflow beneath the pot, helping it dry down more evenly after watering.
Yes. Our planters are frost-proof and designed for indoor/outdoor use through seasonal temperature changes. As with all outdoor planters, avoid leaving standing water in conditions where it can freeze.
Our planters are glazed inside and out and finished in a matte glaze. The interior uses a lighter glaze that helps protect the clay body and supports a smooth, even exterior finish. Because each piece is hand-finished, subtle variation in tone and glaze depth is expected, and matte surfaces may read slightly differently in natural vs. indoor light.
Wipe clean with a damp cloth. For mineral deposits or residue, use mild soap and water. Matte glazes can show scuffs or mineral marks more readily than gloss, but most clean up easily—avoid abrasive pads, and use a gentle non-abrasive cleaner for stubborn marks.