Background: Agrohomeopathy is an emerging branch of agricultural science that applies homeopathic principles to improve plant health, productivity, and soil sustainability. Kalium phosphoricum, a biochemic preparation, is believed to enhance physiological functions in plants, including nutrient uptake and growth regulation. Objective: To evaluate the efficacy of Kalium phosphoricum 6X compared to conventional cultivation methods in improving the growth and yield of Capsicum annuum (bell pepper). Methods: A randomized controlled trial was conducted on 46 Capsicum annuum plants, divided equally into two groups: Group A (treated with Kalium phosphoricum 6X) and Group B (control, watered conventionally). Growth parameters including plant height and leaf count were recorded every 15 days for six months. Data were analyzed using an unpaired t-test at a 5% significance level. Results: The mean height and leaf count were significantly higher in the medicated group (20.48 cm and 20.61 leaves) compared to the control (17.75 cm and 18.34 leaves), with t-values of 2.75 and 2.76 respectively (p < 0.05). The fruiting percentage was 43.47% in the medicated plants and 13.04% in the control group. Conclusion: Kalium phosphoricum 6X demonstrated significant potential in promoting vegetative growth and yield in Capsicum annuum. The findings support the use of biochemic preparations as sustainable, eco-friendly alternatives to chemical fertilizers. Further large-scale studies are recommended to validate these findings.