[Robert]

Aaron, the ground must be very compact and was unable to grow properly.It's struggling but can be revive if the soil around the roots are loosen.

Shawn, plants were planted on different location in the garden. The only place where they don't do well were very peaty, wet and water clogging part of the garden. plants look suffocated, not growing and leaves were crappy. I unearth them to another well drain area and they are all doing very well now. They will grow in any type of soil provided it's well drain.

Our garden is not fence. It was located in isolation far from human settlement. Behind our garden was a natural big forest. Occassionally we only have neighbours passing by using the as short cut to the forest foraging for wild ferns and edible shoots.

Thanks Ken, it's normal soil. It was a plus to have decaying leaves as nutrients but make sure it is well drain.