. Comfrey (Symphytum) roots break up heavy clay and create channels for aeration and better water absorption, while also releasing nitrogen, phosphorus, potassium, and calcium into the soil.
Yarrow (Achillea millefolium) is a valuable compost heap activator, while also stimulating the soil’s nutrient value as leaves fall off and decompose in the veggie patch (it also has pretty white flowers, yay!). Life is a garden, companion plants