NOVELTY - Cultivating Pleurotus eryngii in bottles under greenhouse conditions, involves using mushroom grasses chosen from Miscanthus floridulus, reed, bamboo reed, Neyraudia, Dicranopteris dichotoma and elephant grass mixed with auxiliary materials chosen from wheat bran, corn flour and lime to obtain culture medium containing (in %): (a) M.floridulus (48), D.dichotoma (20), wheat bran (25), corn flour (5), and lime (2), or (b) elephant grass (48), wheat bran (25), corn flour (5) and lime (2).    USE - The method is useful for cultivating P.eryngii.    ADVANTAGE - The method saves production cost, provides high yield of the P.eryngii within shorter period of time, improves economic benefits and quality of the P.eryngii, when compared to existing cultivation methodologies. The drying and storage cost of the mushroom grasses can be saved. The method has facilitated mechanical operations.    DETAILED DESCRIPTION - Method for cultivating Pleurotus eryngii in bottles under greenhouse conditions, involves using mushroom grasses chosen from Miscanthus floridulus, reed, bamboo reed, Neyraudia, Dicranopteris dichotoma and elephant grass mixed with auxiliary materials chosen from wheat bran, corn flour and lime to obtain culture medium comprising (in %): (a) M.floridulus (48), D.dichotoma (20), wheat bran (25), corn flour (5), and lime (2), (b) elephant grass (48), wheat bran (25), corn flour (5) and lime (2), (c) Neyraudia (48), .dichotoma (20), wheat bran (25), corn flour (5) and lime (2), (d) elephant grass (48), D.dichotoma (20), wheat bran (25), corn flour (5) and lime (2), (e) elephant grass (73), wheat bran (20), corn flour (5) and lime (2), or (f) corn cob (75), wheat bran (20), corn flour (3) and lime (2), where the method preferably involves crushing the above-mentioned raw materials and auxiliary materials, weighing crushed components, mixing the crushed components uniformly, preparing culture medium, adding the culture medium in bottles, maintaining water content in the culture medium at 60%, sterilizing the culture medium, cooling sterilized culture medium, inoculating mycelium of the Pleurotus eryngii in the culture medium, and incubating the culture medium for allowing growth of the P.eryngii under greenhouse conditions.