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. % O- X: A0 `) M: d5 D ( n! t; Z6 x9 {4 @ C' f' @+ g$ R9 _have many flower in the yard but I want to cultivate some vegitable and berry.