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. $ Y$ w( V- V" s% G# c, S1 p6 n% D 0 Y; W% x# y! Z/ n. t, Jhave many flower in the yard but I want to cultivate some vegitable and berry.