A trial composed of ten Hevea clones was established at 600 m altitude in 1986 at Tura in Meghalaya, North East India, to evaluate their growth and yield performance. Results showed that maximum growth (44;) and yield (36;) occurred during the monsoon and the post-monsoon seasons respectively. The lowest growth of 5 per cent was noted during the winter season succeeded by 11 per cent in the summer while the lowest yield of 19 per cent was accounted for in the summer followed by 22 per cent in the winter and 23 per cent during monsoon. The growth was virorous in the clones RRIC 105, PB 311, PB 310 and RRII 118 but low in PR 255, RRII 105 and RRII 5. While the highest yield was recorded in PB 311 followed by RRII 208 and RRII 118 the lowest was recorded for RRIC 105 and RRIC 102. Growth and initial yield performance of the ten clones under the agroclimatic conditions of the region are discussed.