Gardener 972, I grow columbine and hellebore in partial shade, and turks cap as well. At this point, really do wish I had more shade in our back yard, we do have a huge oak tree off the patio but parts are in full sun.

The front yard is a different story, we had to have our oak trees really trimmed up as we've been losing the grass big time!

Besides some already mentioned above, I have pigeonberry, solomon's seal, toad lily, and rock rose in partial shade.

Dahlia does well in shade

Right now, all of my potted plants are in the shade of my oak trees and they're very happy to be there!

As for in-ground perennials, Katie ruellia would work, I have the dwarf version in pots in the shade and in the ground by the house's foundation. Horseherb is a good groundcover, but I'm not sure how it's taking the heat...it may have gone dormant on me.

I'm not sure why, but it's harder to find plants that take shade and are perennials. I've had more success with keeping my tropical potted plants spread around the shaded areas than trying to plant underneath the trees. The only problem is lugging them to/from the greenhouse, and setting up the greenhouse, every winter.

Yes, ruellia works for me also. Great plant though one has to stay on top of it spreading.

Shrimp plant might be borderline hardy for Dallas, but if you can grow it you'll find it's great in dappled shade. The D garden says it's hardy down to 10 degrees. It had no problem caming back for us in San Antonio after our unusually cold winter last year.

My verbena bonariensis and John Fanick phlox is doing good as long as I water about every 2nd or 3rd day.
This is my first year to have both.

Shrimp plant comes back in North Texas, Roselee, and I would vote for it as well........love this plant.

carrie....really?
I have the lemon lollipops. I dig them and they die back in my greenhouse every winter. I plant the roots and stems each March they are GORGEOUS now. They seem to want a little more sun than dappled.

I wondered about leaving them inground, but since I plant tulips in the same bed I've never tried.

Have you tried the lemon?

I have salvia black and blue, as well as strawberry euyonymus. I haul in tropicals too! Pink Plume plant, Marakas, oooooh some of the ornamental peppers are happy in dappled too! Chili piccine returns and is beautiful by fall.

Here is a link that might be useful: strawberry bush

I have the lemon lollypop, Cynthia, as well as the "shrimp" colored one. They both return each year. The lemon was large and in full bloom when the hail demolished it, but it is coming back now. They made it through last winter with very little mulch on them.

iris, mexican oregano, salvia gregii, salvia regla, Euphorbia rigida, iron plant, wandering jew, sedum palmerii, Sago palm. I do not water...I have no water to water. Aloe grandietada, Aloe saponaria, Aloe greatheadi