Has produced the most versatile plants tor the manufacture of Flyash bricks/ pavers/ tiles/ blocks made out of fly ash as the main constituent in combination with sand, lime and gypsum. Bricks can also be produced out of flyash and cement mix or sand lime or sand cement
Dig an 8 to 12inch shelf for marginal plants (plants that like shallow water). Position the marginal plant shelf so that the plants frame your view of the water garden. Then dig a ledge for the edging as deep as the edging material less 1 inch and slightly less wide.