A field study was carried out from May to November 2020, to assess the effect of growing conditions and planting date on herbage yield and quality of stevia (Stevia rebaudiana Bertoni). The design of the experiment was split plot with two main plots (open and 50 per cent shade) and four sub plots (May 15^th, June 15^th, July 15^th, and August 15^th). Higher plant height was observed under 50 per cent shaded conditions. Leaf weight, herbage yield, and steviol glycoside contents were higher under open growing conditions. The herbage yield was higher in the treatment combination of planting in May under open conditions (7800 kg ha^-1) and was on par with the August planting (7212 kg ha^-1) under open conditions. Lower herbage yield was recorded in June planting (3872 kg ha^-1) under 50 percent shade and was on par with the July planting (4077 kg ha^-1) under 50 per cent shade. Under open conditions, the crop planted in May recorded the highest total steviol glycoside content (9.05 percent). A strong positive correlation was observed between growth parameters of stevia with maximum and minimum temperatures, whereas the correlation with rainfall was negative.