Natalie: I wonder if the seeds you threw out were possibly disbursed by the wind? I can't imagine that they would stay put without being lightly covered in soil; or watered in to give them good contact with the current soil. You said you just recently moved to Idaho; were the wildflower seeds that you sowed for that particular area of the country? I hope you are able to find seeds that will germinate and spread on that hill/cliff because it sounds like it would be really pretty full of colorful wildflowers!
I googled and found this list of Wildflowers for Northern Idaho, maybe you could ask around at your local garden centers/nurseries to find a source for these seeds:
http://www.fs.fed.us/outernet/...
Good luck and keep us posted ... would love to see photo's of that area all abloom!
