I got two of the darker leaved geraniums last year:
G. maculatum 'Espresso' and G. pratense 'Midnight Reiter'. The flowers of mine are more lilac than blue. But I am cherishing several seedlings that I found with the red/dark foliage.
Good luck with yours.

So happens I just purchased midnight reiter and wondered about the growing conditions for same. Am not familiar with these dark leaved geraneums. I'm hoping that they are not a difficult plant and that I made a good purchase! I got it on sale so that is a bonus. Any suggestions? Thanks.

Debbie,

Midnight Reuter is flourishing for me in full sun with no specific care needed. It's not quite as dwarf as is usually described and its leaves can become a very deep olive green with purple edges and veining, not exactly the "deep purple" of the description, but still very nice. I've since added Black Beauty, Purple Haze, and Tanya Rendall (all dark leaved) to my geranium collection, and all are doing well.

Kate

Thanks Kate. I am a real lover of dark foliage plants so was quite pleased to find this geraneum. Now I just have to find a place for it! (Too many plant sales going on and I just have no restraint when it comes to buying plants!)

I have a brown/black leafed geranium that's no more than 3" tall with 1/4" white flowers nestled in the foliage. So far the leaves are about the size of my thumbnail. Anyone have any idea what that one might be. Must be a mini of some sort.

I bought four small 'Midnight Reiter' this spring I have them in full sun and irrigation (soaker hose) but they havn't grown at all at one point I thought they might have powdery mildew but now they are in such bad shape it is hard to tell. I would appreciate any advise. Thanks Katy

Kate, your geranium sounds more like Victor Reiter than Midnight Reiter. My Midnight Reiter (two, purchased as seedlings at Heronswood some years back) are truly purple black foliaged, no fading to green. Some of the seedlings of those two plants have green brushed purple foliage with the green more evident as summer progresses.

Here is a link that might be useful: {{gwi:825011}}

They have some at Thompson & Morgan.
Seeds or plants.

http://seeds.thompson-morgan.com/uk/en/product/7698/1

Here is a link that might be useful: Black Velvet Red Plants