Lisa, your plants aren't likely on the black market and even the lowest of home purchasers don't landscape for free. Hit Craigslist for local landscape contractors and mention "lilies". Whoever stole your donated plants is probably seeking some financial gain.Someone stupid, someone easy.
Not to paint a bad picture of good folks but it doesn't seem like a theft that isn't related to someone seeking monetary gain. Heroin addicts don't dig holes, they don't call 911 for their dying friends. Shovel?
If ya'll need some plants for your program I'd be happy to contribute some named varieties.
