My Medusa type Euphorbia - probably either esculenta or inermis - is growing okay. What it's not doing is growing like it did last year. It started out in full sun, but it began to develop a brown stress color, so I moved it under an oak tree. The tree is providing deeper shade this year because there hasn't been any hail and didn't suffer caterpillar damage while it was leafing out this year. The Euphorbia has lost the stress color and it doesn't look etoliated, but the growth rate is really slow. I think I'm going to trade places and let it hang from a tree with a lighter canopy where it will get more direct light from the sun. You can sort of tell how much shade in the current location in the second photo. It's the container directly above the napping hound.