Boundering and irrigating sectional kerb for lawns and similar sites, adapted to be arranged preferably along the peripheral edges of such lawns and cultivated sites. Kerb comprising a plurality of component elements (12) made of plastic material, combined and joined removably to each other with different and variable combinations and configurations. Such component elements (12) are each constituted by means (19) for securing to the ground, means (16) for housing at least an irrigating water conduit (24), means (27, 28, 32) for connecting to the water supply system and means (22, 23) to fit the component elements (12) adjacent thereto with different and variable configurations. <IMAGE>
