One of the most imperative aspects of the Sigiriya site is the private grounds. It is known as the oldest landscaped private grounds in the world. The gardens, which can be found in the Sigiriya, can be separated into three different but connected forms: water gardens, cave and boulder gardens, and terraced gardens.
The water gardens
Middle section of the western zone can be seen the water gardens and three major gardens are established here.
The first garden is consisting of a plot bounded by water. It is linked to the main area. Four causeways are used for the association. It includes gateways placed at the cranium of each walkway. Char bhag is an antique garden form which is one of the oldest current models in the world. Sigiriya garden is also built according to that backyard shape.
Each side of the pathway the second contains two long, deep pools. There are two superficial, winding streams guide to these pools. Spherical limestone plates are placed for made fountains. Water supply to these fountains by subversive water conduits, which are still practical, in particular those are working during the drizzly season. Either side of the second water garden two large islands are to be found on. On the flattened surfaces of these islands summer palaces are built by the king. There are two more islands are located in the north and the south. These islands are built in alike to the island in the first water garden.
The third garden is situated much more in a different way. It is on a higher level than the other two. This garden mostly contains a large, octagonal pool with a raised podium on its northeast corner. On the eastern edge of this garden there is a large brick and mineral partition.
The water gardens are built on an east-west alliance. They are already related with the outer moat on the west and the large synthetic lake to the south of the Sigiriya astound. All the pools are again interlinked by using an subversive conduit system. It is fed by the lake, and it is connected to the moats. A miniature water garden is located to the west of the first water garden. It is consisting of several small pools and watercourses.
The cave and boulder gardens
The boulder gardens are consisting of several large boulders. And those are linked by winding pathways. Upon of these boulders, most of them had a structure or pavilion. There are some cuttings that were used as footings for brick walls and beams. The grounds extend from the northern slopes to the southern slopes of the hills at the foot of Sigiriya rock.
King’s audience hall already situated in the boulder garden and the remains are seen on the compressed and polished summit of a large boulder. There are several distinguished features in this boulder garden. There is a five-meter-long stonework throne in this hall and it is carved from the boulder itself. It is not alienated from it. Another attribute in the boulder garden is the Cistern rock. A huge arcade, created by two boulders and it provides entrée to the terraced gardens.
The terraced gardens
At the pedestal of the Sigiriya rock the terraced gardens are formed from the ordinary hill. From the pathways of the boulder garden to the staircases on the rock a series of terraces rises. These have been created by the construction of brick walls. They are located in a roughly concentric plan around the rock. Sandstone staircase formed the path to the terraced garden. There is a covered path on the side of the rock from this staircase. It is leading to the uppermost terrace where the lion stairs is situated.