Fel rhan o'r gwaith, mae gwlyptir wedi'i greu i'r de o'r arglawdd, gyda 56 o goed brodorol a bron 3,000 o goed ifanc a llwyni wedi'u plannu yno.  Unwaith y byddan nhw wedi cydio, bydd y coed a'r llwyni yn harddu'r arglawdd ac yn creu cynefin yn y cwm, gan gysylltu â chynefinoedd eraill.
As part of the works, a wetland area to the south of the embankment has been created with 56 native trees and almost 3,000 tree saplings and shrubs having been planted. Once established the trees and shrubs will soften the visual impact of the embankments and provide habitat and connectivity within the valley.