This study was conducted to investigate into the ecological environments and the soil microflora of purple-bracted plantain lily (Hosta longipes Matsumura) for wild vgetables. Native soil textures of purple-bracted plantain lily were in the order of sandy loam (SL) > loam (L) > clay loam (CL). pH in soil was relatively acid by 4.8, electric conductivity was 0.08mS/㎝, and organic matter content was 0.08g/㎏. CEC was measured by 100.8cmol⁽⁺⁾㎏^-1 and available phosphate was 103.4㎎/㎏. Contents of exchangeable cations in terms of potassium, calcium, and magnesium were measured by 0.33cmol⁽⁺⁾㎏^-1, 2.26cmol⁽⁺⁾㎏^-1, and 0.87cmol⁽⁺⁾㎏^-1, etc. Diurnal changes in the air temperature of the natives were 15 to 20℃, that temperature differential was relatively little compared with that in open field by 15 to 30℃. Relative humidity in the natives were much more humid by 60 to 80% compared with that in open field by 35 to 85%. Light intensity in the natives and the open field at ten o'clock were 2,300μmol/m²/sec. and 1,750μmol/m²/sec. Total number of soil microorganisms were 8.4×10⁷ c.f.u./g. Mycorrhizal spore densities over 500 ㎛, 355~500㎛, 251~354㎛, 107~250㎛ and 45~106㎛ were 0.8, 1.3, 2.1, 38.1, and 110.0 respectively. Mycorrhizal root infections by vesicle and hyphae were 17% and 6%. However, arbuscules in the roots were not shown.