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. * }1 ^0 G& \' y , h- `! ~7 @, P# ~" F: X2 r4 b5 uhave many flower in the yard but I want to cultivate some vegitable and berry.