sun coleus can take quite a bit of sun. recently hybridizers have produced supersun coleus. supposedly they want full sun to partial shade.

Here is a link that might be useful: supersuncoleus

My local Nursery is carrying all of the following full sun to part shade varieties. They have them in full sun. I'm sure you can search for them in Google Images to see what they look like. I can provide their detailed info for specific plants if you want it.

Amazon
Blonde Bombshell
Candy Store
Cantigny Royale
Dark Star
emerald Snow
Florida Sunjade
Garnet Robe
Gay's Delight
Glennis
Illumination
Kaleidoscope
Kong Series
Merlins Magic
Pat Martin
Peter's Wonder
Raspberry Truffle
Rose Explosion
Rustic Orange
Sparkler
Stained Glassworks - Copper, Kiwi Fern and Tilt-A-Whirl
The Flume
Violet Tricolor
Wine Country

Nice! Thanks for the help, folks. Our local nursery is having a huge sale on coleus this weekend...we'll see what we can get our hands on!

And by the way, I'm reading a lot about the popularity of coleus making a comeback. Any thoughts? As a novice, I guess I have a child-like appreciation of the plant due to its showy colours. I had no idea that they had ever fallen out of favour or been thought of as "so last-century"!

'Black Dragon' is one I've had for years in almost all day sun. This is one of my favorites. I usually get ones that have a lot of dark red or purple in their leaves. I have most of mine where they get all morning sun plus sun until 2pm. As long as I mulch them and don't let them dry out, they do great. The only one that didn't do well in these conditions was one that had the word 'lava' in it. It has beautiful reddish leaves, but they faded bad with all that sun. Just looked washed out.
I'm sure you'll find many that will do well with full sun. Good luck and enjoy!

Kat

They never went out of favor with me, but I have always used them for color in shade. Now I think there are more varieties for sun!