I have seen red trilliums growing wild and I've had some growing in the garden. They need shade and they need mulch over winter - as if they were growing on the floor of a forest, which is where they grow naturally. I never noticed a smell from them, not nice or stinky.

Cottage Life - Five Canadian Plants that Stink

1. Eastern skunk cabbage (Symplocarpus foetidus); Western skunk cabbage (Lysichiton americanum)
2. Red trillium (Trillium erectrum)
3. Kamchatka lily (Fritillaria camschatcensis)
4. Pawpaw (Asimina tribola)
5. Dutchman’s pipe (Aristolochia macrophylla)