Watergarden

Shade

be careful, a lot of agate is dyed and it will come off in the water
 

mingbop

Lemon balm is gorgeous for the herb bit....and lavender of course....also try thyme over the stones at the waters edge... I dont know where you live but here we have water forget-me-nots , the blue of these is out of this world.. and rosemary sharpens the senses & wits..