I do not claim any semblance of patience. Yes, the garden demands a measure of watch and wait, but I seek an immediate return. Fortunately, I am able to ignore these impulses to occasionally plant for the long-term and then forget until the dividends are paid years later.
Why would anyone plant trilliums? They are costly, slow to spread, and slower to flower. A Japanese maple or a redbud from the garden center makes an immediate show, but the tiny trillium is an investment. And now, it begins to pay off.
Barbara and I plan our spring hikes to view ephemerals emerging in local forests. It’s a long, dull winter, and we’ve discovered the best hikes for hepaticas, trout lilies, trilliums, and others. I’ve planted a few of all, and happily, trilliums have been slow but the most successful.
Today, trilliums are scattered about the shaded side garden with seedlings appearing along the shaded front walk. There are several species, and each clump expands a bit each spring with a few seedlings now old enough to flower.
Ramblin' through Dave's Garden 
Supposedly they are easy to vegetatively propagate/divide. Look for YT videos by PlantDelights and BriethePlantLady (on Trilliums). Maybe John Lonsdale has insights on propogation.
I enjoy seeing trilliums seeding onto other areas of the garden, but my priority is growing the clumps. So it’s slow, but there are many other things to distract my attention while they’re growing.
Thank you for sharing your trilliums. I left mine in Charlottesville, Va when I moved to Sedona, Az upon the death of my husband. How I miss the east and applaud you for keeping me in touch with gardens I do so miss. I listened to you before I left Va. but you are priceless now. Thanks Barbara for keeping Dave going.
While every region of the country offers unique gifts, I am grateful to live where so many plants thrive. I’m happy to provide a link to our area.