Abstract: A free-standing support frame (1) for a horticultural growing bag (B) and plants (P) growing therefrom, the support frame comprising a pair of substantially A-shaped uprights (3), held in spaced apart relationship by upper and lower cross-members (5), the lower cross-member being adapted to engage with and support a horticultural growing bag (B) along one of its longitudinal edges. The growing bag is supported such that the bag presents an increase depth of growing media (C) for the roots (R) of the plant (P) to grow therein and form a void (V) over the growth media to retain a volume of water to percolate therethrough.