I know very little indeed about hardy orchids but I DO know a lot about Dactylorhiza maculata and its ssp fuchsii (well they were originally bought in the UK in 1981 under those names). I know about them because they've almost become weeds, welcome though they are. Going around yetsreday I counted nearly 200 stems in flower, mostly in pots of bulbs, but also in the little bit of civilized lawn, in long grass, in cracks in the concrete paths, in nursery pots, in raised beds and so on. Just everywhere in fact. Even more spread about than our pesky native onion orchid Microtis uniflora. At least the Dactylorhiza has attractive flowers, not the miniscule grass green of the Microtis.