where I can buy? what kind of soil(dry or wet, soft or hard, ...) can be used to be planted? in the sunny region or not too much sun aera? Do I need to water it frequently? Thanks for any advices. % K/ ?$ X& L& a5 g) k* C 9 H" g- ?/ z1 f* S. O- Xhave many flower in the yard but I want to cultivate some vegitable and berry.