In nature, we find many common means that can give us nourishment for the plants. Here is an overview of the different ones: Boron – beetroot grass, milk thistle Phosphorus (P) – promotes root development – ​​buckwheat, watercress, barley, sorrel, garlic, velvet flower (the flowers), calamus root, chamomile flower, caraway, clover, mugwort, lupine, dandelion, yarrow, meadwort, yarrow, mustard, lemon balm, vetch Iron - bladderwort, lichen, kelp Potassium (K) – promotes flowering and fruit formation – borage, orange peel, banana peel, watercress, einkorn, oak bark, fennel, plantain (and all the others in the giant genus), carrot grass, Roman chamomile, glandular sedge,...