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. # y8 D$ ]# c0 P e" r 6 _0 e$ B$ G& q, \( s7 F& ^have many flower in the yard but I want to cultivate some vegitable and berry.