I have a feeling that they like the cramped conditions of a mixed container. This is because the area in my medic garden that I planted with a mixture of plants is thriving, where as the single pot areas in the stacker are not doing as well.
I have planted up another mixed medic garden, to test my theory, and will compare plant growth during the growing season.
I have planted up another mixed medic garden, to test my theory, and will compare plant growth during the growing season.