[THIS DATASET HAS BEEN WITHDRAWN]. This dataset includes phenology (spring emergence) data from two of the dominant higher plant species in the experimental plots at the Climoor field site in Clocaenog Forest, NE Wales. Data includes shoot length extension and growth form for Calluna vulgaris, and shoot length, phenophase and location for Vaccinium myrtillus (please refer to supporting documentation for definitions). The data were recorded in 2000, 2002 and 2004. Full details about this dataset can be found at https://doi.org/10.5285/ef0bf96f-357b-4c7e-80e4-1a33903eecdf