This article explores issues related to the pre-sowing stimulation of plant organisms using a magnetic field. A literature review revealed that similar studies typically have focused on only one type of stimulation or one variety. In the present study, a multifactorial experiment was analyzed. The present study analyzes a multifactorial experimental design, taking into account several levels of magnetic field induction as well as three varieties of root parsley (Petroselinum crispum). The influence of magnetic stimulation on selected germination parameters — germination energy and germination capacity — was investigated. Due to the specificity and volume of the samples, custom experimental stands were developed to enable accurate and consistent testing.