The field experiment was conducted at college farm, College of Agriculture, Hyderabad during rabi 2015-16 to evaluate quinoa (Chenopodium quinoa Willd.) at different dates of sowing and varied crop geometry in semi-arid regions of Telangana.The higher plant height was obtained in 16th November date of sowing and higher number of branches plant-1, leaf area was recorded in 1st November date of sowing compared to other dates of sowing. Leaf dry matter was higher at 30,60 DAS and total dry matter was higher at 30, 60, 90 DAS and at harvest with 15th October date of sowing. The panicle length, number of spikelets panicle-1 and number of grains panicle-1 was recorded higher at 15th October date of sowing. The maximum seed, stalk yield was obtained with 15th October date of sowing. Plant population of quinoa significantly varied with crop geometry as highest and lowest at geometry level of 15 × 10 cm and 60 × 10 cm respectively. Plant height, number of branches plant-1 were higher at 60 × 10 cm crop geometry compared to other crop geometries. The higher leaf area recorded at 45 × 10 cm crop geometry. The higher leaf, stem and total dry matter was observed with 15 × 10 cm at 30, 60, 90 DAS and at harvest. Among the yield attributes, number of branches plant-1, panicle length, number of spikelets panicle-1 were higher under wider spacing 45 × 10 cm and 60 × 10 cm compared to narrow (15 × 10 cm) spacing. The highest seed and stalk yield were obtained with narrow (15 × 10 cm) spacing and was followed by 30 × 10 cm.The interaction effect on seed yield showed in higher seed yield with 15th October date of sowing along with 15 × 10 cm and 30 × 10 cm.