In one of the yards I work on we have a clump of ground orchids. The seed pods are still green. The owner says she has never noticed the flowers. She doesn't get out and around much, so they probably are not across the yard colors. They have a single leaf on a pseudo bulb above ground and the usual fleshy roots. These have been in ground for many years, but, they probably will not take frost. I am in Tampa, FL, USA, zone10a.