Hi Sam, I was able to find sevearl Lewisia seed sources - unfortunately, they're all outside the U.S., so you would have to get a phyto. If you're interested, here they are: https://www.jelitto.com/haupt_en.html http://www.ashwood-nurseries.co.uk/ordlewis.htm http://edirectory.co.uk/chilternseeds/pages/… http://nickys-nursery.co.uk/seeds/pages/… Paige Woodward's Pacific Rim Nursery sells Lewisia plants: http://www.hillkeep.ca/per%20lewisia.htm (Canadian - I believe a phyto would be required?) A few varieties are available from this site (US!) http://www.gardenmakers.com/seedindx.htm#L For info re. Lewis & Clark's "discoveries": http://life.umd.edu/emeritus/reveal/… Have fun shopping! Jennifer