Is this really considered an orchid. They seem to grow freely and in the ground. They have a orchid flower. I have sorbet "Plum Passion" What's the scoop?
I believe there are various orchids which people have found growing freely as weeds in various parts of the USA.
North of the UK we have Dactylorhiza growing freely in heath land, but unfortunately not as prolifically as I've heard some of the ones in the USA grow.
I would think if your soil is right for them you could plant them in the garden.
Many people in the UK plant Cyps in the garden but unfortunately I have a very clay like soil and so can't do it and grow them in pots outside instead.