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. 0 P+ T8 ]$ g* O4 Q% |+ }, ? ( X' P; \% Q/ K$ y) K0 Ehave many flower in the yard but I want to cultivate some vegitable and berry.