Gartenbauliche Biokohle

Thriving Plant Guarantee (or refund + replacement plant).

At Green and White Plants, your experience doesn’t end at delivery. We want your plant to thrive at home — that’s exactly what this guarantee is for.

If, despite following our recommendations, your plant undergoes an irreversible loss of overall vitality, we will guide you to stabilize and recover it. And if we still can’t save it, our guarantee applies:
✅ Refund of your substrate order
✅ Replacement plant (up to €100 per order as a store credit, usable on one or multiple plants)

Guarantee conditions

• Report any issue within 30 days of delivery by email to contact@greenandwhiteplants.com.
• Use the mix exactly as received: do not blend it with other soils and keep it as-is, without additions.
• Your purchase was made directly on our website: greenandwhiteplants.com.
• You are using the correct substrate for the plant, as indicated on our product pages.

Still unsure? Read what our customers say on our website: See reviews.

The search for the perfect substrate is at the core of our philosophy. Over more than two years, we researched, tested, and refined multiple formulations to create substrates tailored to the specific needs of each plant. This in-depth work was carried out between Thailand and France, under real growing conditions, with extensive testing focused on drainage, aeration, water retention, and root health. The final formulation of our substrates is completed in France. All our substrates are then prepared and packaged in our greenhouse in the Paris region, under strict quality control, ensuring reliable, high-performance, and long-lasting growing media.

How our biochar works

Biochar is a plant-based amendment specifically designed to be used as a substrate base or functional additive, mixed directly into the growing medium.

Its microporous structure provides a precise balance between aeration, controlled moisture retention, and root-zone stability, which is essential for healthy indoor plants, including the most sensitive species.

Thanks to its high adsorption capacity, biochar contributes to the natural purification of the substrate by capturing impurities, residues, and excess nutrients.

It also promotes excellent air circulation around the roots and helps prevent compaction, root rot, and biological imbalances, creating a healthy and long-lasting root environment.

An amendment inspired by natural processes

In nature, soils enriched with plant-based charcoal show high biological activity and long-term structural stability.

Biochar is directly inspired by these living soils in order to recreate, within the substrate, a biologically active, aerated, and resilient environment perfectly suited for container cultivation.

How to use biochar

Mix biochar directly into your growing substrate, adjusting the proportion according to the plant type and substrate blend.

Used as a base or as an additive, it improves substrate longevity, secures watering practices, and promotes healthy, active root development over the long term.

100% biochar, contributing to natural substrate purification, biological balance, and long-term root protection