Soil salinity is a major abiotic stress limiting the growth, productivity, and quality of medicinal and aromatic plants. This study evaluated the effects of potassium silicate (PS) and potassium humate (PH), applied as soil and foliar treatments, on the growth, yield, mineral composition, biochemical characteristics, and essential oil production of anise (Pimpinella anisum L.) grown under saline soil conditions at Farm of Wadi El-Netron El-Bahyra Governorate, Egypt.  Located on GPS (30º 42 802 N, 30º 26 316 E), during two successive seasons winter 2024 and winter 2025.  Nine treatments, including an untreated control, were arranged in a completely randomized design with three replicates. Potassium silicate was applied at 3 and 5 kg fed⁻¹ as soil application and 2 and 4 g L⁻¹ as foliar spray, whereas potassium humate was applied at 3 and 5 kg fed⁻¹ as soil application and 3 and 5 g L⁻¹ as foliar spray every 30 days after planting respectively, until harvest. Potassium humate and potassium silicate are widely utilized as soil conditioners, facilitating improved soil structure and increased water retention capacity. Humates have also been employed to supply nutritional to plants deficiency in calcareous. So the incorporation of humic acid enhances various soil nutrient contents, including total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus, available potassium, and organic matter, with the most substantial effects observed in the second year., as a soil conditioner, These results showed that all treatments significantly (P ≤ 0.05) improved vegetative growth, yield components, leaf and seed N, P, and K contents, antioxidant activity, total carbohydrates, essential oil percentage, and reduced proline and total phenolic contents compared with the control. Soil application was generally more effective than foliar spraying. Potassium silicate at 5 kg fed⁻¹ produced the highest values for most measured traits, followed by potassium humate at 5 kg fed⁻¹, whereas foliar application of potassium silicate at 4 g L⁻¹ was the best foliar treatment. Overall, potassium silicate was more effective than potassium humate in mitigating salinity stress and improving the productivity and quality of anise under saline soil conditions.