The effects of N rates applied in two splits (before planting and after the first harvest: 0+0, 0.3+0.15, 0.6+0.3, 0.9+0.45 and 1.2+0.6 g N/plant) and harvesting date (start of blooming and at full bloom) on the growth and yield of sweet basil cv. Wala were determined under greenhouse conditions. Shoot length increased with increasing N rate up to 0.6+0.3 g/plant. All the N treatments had significant effects on the yield of basil, with 1.2+0.6 g N/plant application resulting in the highest yield of fresh and dry herb, leaves and stalks. The yield of the herb was highest with harvesting at full bloom.