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. ! H1 Y( U5 M6 |, _$ l 1 Y8 Y: \ y) l- t* ?have many flower in the yard but I want to cultivate some vegitable and berry.