Aromatic plants are a sustainable supply of flavoring ingredients that apply to the food, fragrance, and medicinal industries. To determine the effects of compost manure fertilization (2, 4, and 6 tons/ha) along with spraying of methyl jasmonate (20 and 30 ppm) and potassium silicate (1000 and 2000 ppm) on the vegetative growth and chemical components of sweet basil (Ocimum basilicum L.) plants, a field experiment was conducted at the Experimental Farm of El-Quassassin Horticultural Research Station, Ismailia Governorate, for two succeeding seasons (2021 and 2022). Four replications of a split-plot design with three treatments of compost manure fertilization in the main plot and three treatments of stimulants in the sub plot. The data collected showed that the foliar treatments of 2000 ppm K-silicate combined with 6.0 tons of compost manure per hectare of sweet basil plants produced the most significant levels of these traits. However, the highest values for plant height were from the application of 6 tons/ha of compost manure combined with 30 ppm of methyl jasmonate. The lowest values, in contrast, resulted from 2.0 tons of compost per hectare across both growing seasons under no stimulant conditions.