Not usually but it depends a fair bit on the type of trillium and the conditions they're grown in. The big white grandiflorums are the fastest spreaders I think. In my experience they grow best in soil that is a bit moist in spring - but not wet - and then it doesn't seem to matter if it dries out later in the summer after they're dormant. They also seem to prefer lots of leaf litter and organic matter from letting plants die back in the fall and undisturbed soil - i.e. don't cultivate around them if at all possible. And decduous shade of course. When we bought this house in 1999, we discovered the following spring that we had a few small clumps of T. grandiflorum that were being engulfed by pachysandra. We cleared out the pachysandra and planted things like columbine and other herbaceous woodland plants and let all the ash, oak and pine needles stay on the ground and did no spring or fall clean-up in that area. This is what it looked like this past week:

I'm no expert by ANY means so people can correct me if I'm wrong but here's what I see in your pictures: 1. Red Trillium (trillium erectum) 2. Looks like Virginia creeper but those flowers...they aren't as far as I know. Are they separate plants? Or are those flowers attached to the vine? In Virginia creeper the flowers look like this: http://rnrstreamer.lsu.edu/ecosystems/webtour/species/virginiacreeper/images/PARqu61a_web.jpg 3. ? 4. This looks like some sort of "beech". The serrated edges and deeply grooved veins are very beech-like. I think you are right in thinking it's a sapling. And if it's a beech you are fortunate to have it. Take a look around and see if you have any beech trees in the vicinity. The American beech has relatively smooth, silvery grey bark an the branches tend to swoop downward rather than up toward the sky as most trees do. 5. This is either Solomon's Seal http://ncnatural.com/wildflwr/solomon-new.jpg or False Solomon's Seal http://ncnatural.com/wildflwr/falsesol.jpg The stem of Solomon's seal is quite straight while the stem of False Solomon's seal grows in a bit of a zigzag. Also the flowers on Solomon's Seal are all along the underside of the stem usually in pairs while the flowers for False solomon's seal are at the tip of the stem. Barb

Hallo kap_horn, Deine gefüllte Nieswurz sieht wirklich wunderschön aus, ich wäre sehr an ein paar Sämlingen interessiert... Ob ich aber etwas für Dich Interessantes im Angebot habe... weià nicht. So Schätze wie Trilliümmer hab ich leider nicht im Angebot und an Corydalis auÃer flava und wahrscheinlich cava (wohl kaum was Du suchst...) höchstens C. sempervirens (einjährig). Vielleicht kannst Du Dir ja erst mal meine Tauschliste ansehen und ich schau mal im Garten und bei den neu erworbenen Samen nach, ob ich noch was spannenderes finde. Viele GrüÃe, Camassia

Nope, but Id like to see yours.