Hello everyone,
I won't be able to show you any photos, because I couldn't find any. I am sincerely sorry for that, but you will have to believe my words on that. Spiranthes aestivalis can grow perfectly in a full sun in constantly humid/wet conditions and in a calcareous peat bog. Nothing special, I know unless I add that it can self sow itself too! To do that it needs only Primula farinosa as a companion! It germinates only in between its roots or very close by the clumps. I had such experience twice in two different peat bogs. I only had too little light at my peat bog, so in someone else's garden I made another one, but in full sun. I also planted Primula farinosa there and Spiranthes aestivalis, after four years, there were additional nine matured plants of S. aestivalis. I really wish I could show you photos, but for unknown reason I just did none. :/ The soil mix is simple peat: sand : calcareous rock with proportions around 1:1:1. You can use dolomite or marl rock to provide calcareous ions. You can now grow Spiranthes aestivalis same easily as Dactylorhiza majalis and Listera ovata.
You now need just seeds and your years for your own matures Spiranthes aestivalis, have fun!