Fuente: WIPO "tomato" A growing medium includes carboxylated cellulose nanofibers (CNFs) having an oxidation of DO > about 0.7 mmol/g and a sodium content of less than about 50 ppm or about 1.5% of a total base saturation in 1000 g of a 1 wt% CNF suspension and one or more crosslinkers. The growing medium has a water content of greater than about 90% by weight. A growing medium includes carboxylated cellulose nanofibers (CNFs) having an oxidation of DO > about 0.7 mmol/g and a sodium content of less than about 50 ppm or about 1.5% of a total base saturation in 1000 g of a 1 wt% CNF suspension and one or more crosslinkers. The growing medium is aerated and has a water content of less than about 10% by weight.