A vertical growing system includes a nutrient cap and a base that removably support a grow tower formed from a pipe with a number of grow pockets adhered to the pipe. The roots of plants in the grow pockets extend inside the pipe, where they are hydrated by irrigation fluid flowing from the cap, through the pipe, through the base, and into a reservoir or collection system. A user can easily install and remove the pipe without having to remove the cap or base. The cap contains nutrient media, such as charged biochar and coarse sand, that supplies nutrients to the irrigation fluid as it percolates through the cap. A 4-tower embodiment included four grow towers above a reservoir. A submersible pump supplies irritation fluid from the reservoir to the nutrient caps. A central light rotates to illuminate the plants in light-dark cycles.
