i tend to block by colors, so i have a blue bed (which isn't all blue anymore). i've purchased plants for a theme for the fair, but that's sort of given, and not really what you were asking. for at home, i tend to cluster like things together (a bunch of natives in one area), but i mix edibles and permanent plantings, so no other obvious themes. i guess my overall theme is edible landscaping, but that probably is only about 1/3 to a 1/3 of my plant material- the rest is just pretty stuff i like. i try to use lots of natives in the shadier parts. a chocolate garden is a fun idea!

I pattern some of my clusters after plantings at the Raulston Arb. Only the stuff in my yard is growing differently then out there so the effect is lost. At least I can claim the inspiration came from somewhere.

I've had a few chocolate scented plants before. The only one that did well was the Berlandia (an Oklahoma native, like me!), the chocolate cosmos which I absolutely adore didn't like our humidity and heat - but I did get a few flowers from them.

I currently have three Theobroma cacao trees in the house as houseplants. These are the tropical forest trees that chocolate comes from though I doubt they ever get big enough to fruit this far north. They are surprisingly happy in a dark bedroom with little care.

In my previous life I had a hot garden, which was just a garden with all the flower colors being red, orange, gold, yellow or anything in between. I guess that's sort of a theme.
Years ago I saw a photo of a red garden. It was just sensational. Everything was red blooming, both warm and cool reds and some of the plants had purple foliage. You wouldn't expect the warm reds and cool reds to work together but this really did.
What originally got me thinking about the Chocolate garden was all the plants out there that use chocolate in the name. There are now quite a few. Sometimes it is the flower color that causes the name, sometimes the foliage, sometimes the smell. If I ever do put one together, it will, of course, be mulched with cocoa hulls. ;-)
p.s. Alicia, I love all your new threads!

Cocoa hulls -- I like that! :)

We happened across a site one day while researching chocolate cosmos at work. Might give you some new ideas.

Here is a link that might be useful: Chocolate Flower Farm

Thank you for the link Adele. I am going to start compiling a list. :)

My hubby is not going to be very pleased with you, dellare, when he find out it was you who turned me on to this fantastic site. Who knew! Thank you thank you thank you for sharing!
Oh Yum! Gotta go, chocolate is calling!