My Tiny Taste of Heaven

Decided to quit my whinin' about not having a garden space this year and green my deck. We've got to start with Zone 0, right? It's not much, and I'll have to do a lot of watering this summer. Still, it makes me a little happier, and I can always use the water I collect waiting for the shower to warm up.

How have you made good use of tiny spaces? Can you identify these plants?