A greenhouse 1 comprising a roof construction, at least one row of several support legs 2, which support at least part of the roof construction, and a cultivation gutter 10 extending in the direction of said row inside the greenhouse 1 and being supported by successive legs 2 in the row, wherein the cultivation gutter 10 has a central axis that extends in the longitudinal direction of the cultivation gutter 10, through successive support legs 2, and wherein furthermore an air hose 12 exending in the direction of the row is provided, which air hose 12 is designed for supplying air to the cultivation gutter 10, wherein the air hose 12 has a central axis that extends in the longitudinal direction of the air hose 12, through the successive support legs 2.
