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Posted: Apr/09/2007 1:12 PM PST
I believe I read somewhere that wild trilliums are biennials - is that correct ? They - along with the Ladyslippers I have never come up in the same place twice - therefore I would think that possibly they seed after flowering ???? I haven't found the answer to that in the gardening books I have
Posted: Apr/10/2007 9:31 AM PST
I'm pretty sure trilliums are perennials. The nomadic behavior you describe though does sound like typical biennial restlessness.
I think I would still classify them as perennials. Try marking their location with a stake and and follow them a couple of years to be sure your memory isn't faulty.
Location: Ontario, Canada..Zone 4
Posted: Apr/11/2007 6:02 AM PST
Trilliums are perennial but if you pick the flower and leaves. It's hard to pick one without the other, they normally die. I have them growing up back of my place. Check this website out: