Photos:
monrovia.com
heuchera.com
Here's a Few Ideas
Keep Containers Simple
Clean lines and block colored containers rather than busy patterns add emphasis to the plant material. Low-bowl planters with wide mouths accomplish the same goal. For my succulent planter pick, check out Terrain's Hypertufa container.
The More the Merrier
Don't be afraid to pack in the plants. Most succulents aren't amazingly fast growers so overcrowding isn't an issue. The different geometric forms and unique architecture, for which succulents are well known, is extremely eye catching when clustered.
Remember Textures & Hues
Because succulents aren't planted for their prolific blooms, add variation to your container through different textures and hues. The possibilities for texture variance are many: prickly, smooth, pubescent {botanical term for fuzzy or slightly hairy plants}, and waxy to name a few. The dominant color of succulents is {no surprise} green, but hues can vary from chartreuse to olive. Shades of blue and grey are common as well, and tinges of red, purple, and orange {see Euphorbia 'firesticks'} add interest and flashes of color.
Pictured above: succulent displays in Paris, Barcelona, Valencia, & Rome