5Other seed fell on rocks where there was not much soil; and immediately a plant sprang up 4:5 In many parts of Israel a layer of limestone lies an inch or so beneath the surface of the ground. This layer traps the moisture, and for a brief period of time a plant growing there may appear to flourish. But as soon as a dry spell comes, the moisture quickly dissipates. Due to the layer of limestone, the plant cannot sink roots and soon withers and dies (v 6).because the soil had no depth.