I have been carefully observing my germination tray for signs of life. The New Guinea Impatiens are very small seeds and the packet recommends that they not be covered. I just placed the seeds on top of the vermiculite and spayed water on them. But now the trick is to find the seeds and see if there are any radicles sprouting out of the seed. Here is a picture of one of the seeds at the tip of the plant marker.