Core

Grotek Core is an organic-based plant nutrition supplement derived from plant matter — including vegetable waste — that provides key minerals alongside high levels of humic acids, fulvic acids, and plant- and mineral-derived metabolites. It functions as both a nutrient supplement and a soil biology stimulant, feeding beneficial microorganisms while delivering compounds that accelerate plant growth.

The humates and metabolites in Core improve cation exchange capacity in growing media, chelate nutrients for better bioavailability, and stimulate the soil food web. The microbial stimulation effect is particularly valuable in soilless media (coco, rockwool) where beneficial biology is often limited and nutrient cycling depends heavily on root-zone additions.

Use throughout the grow cycle — Core contributes at every stage of plant development, not just a specific phase. Compatible with soil, coco, and hydroponic systems. Works within Grotek's full nutrient system and is compatible with other nutrient programs.