We use aged and plant-based compost to provide essential plant nutrients (like nitrogen and phosphorus) for your calathea plant.
The organic matter in the compost also helps with aeration, drainage, and preventing root rot.
Plus, it minimizes the need for synthetic fertilizers — which can harm soil microbes and pH levels when used excessively.
Biochar is the star of Rosy’s calathea potting mix! It enhances aeration, drainage, nutrient retention, and plant root development.
Biochar is carbon negative.
For every ton of biochar produced, three tons of carbon is removed from the emission cycle.
That’s why it’s a better alternative to activated charcoal and unsustainable soil additives like peat moss, pumice, and coco coir.
Root Boosting Mycorrhizae
Rosy’s calathea soil contains plant-friendly fungi known as mycorrhizae (mahy-kuh-rahy-zee).
The fungi enhance water and nutrient access for the plant’s root system.
They also create glomalin, a gum-like substance that further locks in the moisture and nutrients calathea plants need.