Tiarella is a native for the shade garden.
So far in my experience, tiarella likes similar conditions to huchera, but it spreads on runners from the roots, not as aggressive as strawberry begonia.
according to the links cited below, it grows in the mountains from Canada to North Carolina, hence itís appetite for water.... making it an undesirable candidate for my test garden.
Hereís 2 pages at theprimrosepath.com that cover tiarella pretty well.
Click the links below to go to the other shade flowers.|bloodroot|columbine|toadlilly| green & gold |spigelia| foxglove | troutlilly| hellebore||spiderwort|trillium|dotted horsemint|penstemon|turk's cap hibiscus | buckeye|