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. / `5 F: I) u: d" x5 d. f9 M ) z& A& [6 J N' E; P ahave many flower in the yard but I want to cultivate some vegitable and berry.