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. * K5 |* m( V9 v8 j7 |, e ' Q9 L3 l8 N6 g i* z4 f" Dhave many flower in the yard but I want to cultivate some vegitable and berry.