A hydroponic crop growing system 1, using nutrient film technology, comprises a suspension assembly 8; a relatively rigid gutter 7 suspended by the suspension assembly; a relatively flexible gully (21, figure 3) supported by the gutter and extending in a length direction of the gutter; multiple inlets 26 at which a nutrient solution is introduced into the gully at first positions along the gutter; multiple drains 27 where nutrient is drained from the gully at second positions along the gutter, with a plurality of runs (29, figure 6) along the gutter defined between adjacent first and second positions, wherein the gradient of each run is between 1.27 and 1.35 percent, with the gutter comprising at least four runs, providing the gutter with a W-shape when viewed in side elevation. This system is particularly, but not exclusively, suitable for growing tomatoes in glass houses. Also disclosed is a method of growing tomatoes in the system as claimed and tomatoes grown by the system as claimed.
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