The carried out researches have shown that the period between the 5th and 20th April is the best time for setting up the plantation of Plantago psyllium (sowing directly into the soil). In this case the vegetation season, since the seed-time till the harvest-time, is about 100—114 days. A delay in starting the plantation results in the crop decreasing. The plant congestion (5 — 11 kg of seeds per 1 ha in the row spacing of 20 — 40 cm) does not cause any essential differences in the yield. 5 kg of seeds per 1 ha in the row spacing of 20 — 40 cm, is assumed as the best sowing standard that makes the mechanical treatment possible. The mineral fertilization: N - 60 kg/ha, P2Os - 40 kg/ha, K20 - 80 kg/ha, when soil is rich enough in those components, does not cause any statistically evidenced differences in the seed crop. The investigated agents, i.e. the seed-time, the congestion of plants as well as mineral fertilization, do not influence the viscosity of seeds.