If you can get locally-raised seedlings from a
local grower at the farmer's market, then get them. Otherwise, I'd avoid potted seedlings. Not only is it hard to get seedlings that aren't the same bland hybrids you see on the supermarket shelves, but most towns don't have any source of seedlings besides big box store "garden centers". I have worked in one. The plants available in that setting are shipped long distances in closed containers, meaning that they are either carrying all kinds of molds and diseases or they are drenched in fungicides or both. Most of the time they are potbound and past their prime, often stunted for life by poor
root development. Most have been raised with chemical fertilizer and sprayed for the insects that swarm in these
greenhouse monocultures. To quote plant breeder Frank Morton:""The practice of applying systemic neonicotinoid pesticides to flowering plants and bedding starts at nursery outlets is ironic beyond belief--pollinator food plants made poisonous by conventional practices."
So, once you've added up the systemic bee-killing insecticides, the fungicides, fertilizers, and other chemicals, the
carbon footprint of the long-disstance shipping, the carbon
footprint of the
greenhouse production, the poor quality and potential of the pot-bound plants, and the likelihood of them carrying disease--what exactly is cheap?