Thyme growing on the rocks of the castle 
mound.  The pathway to the castle is in the
bottom right hand corner of the picture.

 

The root of this thyme has been exposed
by erosion of the soil and stones. Thymes
growing in dry conditions grow very long
roots in search of moisture and this root demonstrates it very well.

Large area of thyme growing on rock
on the castle mound.

Thyme growing on shallow soil on the rocks
of the castle mound, beside the pathway.

Thyme growing between rocks on the castle mound. 

Thyme growing on the rocks beside the
footpath to the shore on the Heugh, at the
south west point of Holy Island.  These rocks
are part of the dolerite dyke across the
south of the island.