In the experimental trial the influence of the aqueous extracts on the germination capacity and surface contamination of the seeds of Brassica oleracea L. white cabbage, ‘Stonehead’ variety was assessed. The extracts in the form of macerate, infusion and decoction were prepared with the use of different morphological parts of 40 plants species. The results obtained allowed to indicate the plants the extracts of which both stimulated the germination of the seeds and limited their surface contamination with microorganisms. Additionally, the information which manner of obtaining the extracts stimulated the viability and health of analyzed seeds most effectively was received. Among applied extracts the germination capacity of cabbage seeds was stimulated the most effectively by preparations of Juniperus communis fruit (+20,67%), Verbascum thapsiforme flowers (+20,48%), and green parts of Artemisia absinthium (+19,61%). In turn, the healthiness of the cabbage seeds provided the greatest degree by treatment all forms of extracts (macerate, infusion, decoction) of Carum carvi fruit (-78,14%), roots of Archangelica officinalis (-72,48%) and Salix alba and S. purpurea bark (-69,03%). The germination of seeds was stimulated by the extracts in the form of infusions, whereas the microorganisms colonization was limited by macerates.