Catalyzes the 2-beta-hydroxylation of several biologically active gibberellins, leading to the homeostatic regulation of their endogenous level. Catabolism of gibberellins (GAs) plays a central role in plant development (PubMed:18952778, PubMed:20171575). In vitro, converts GA12 and GA53 to the corresponding 2-beta-hydroxylated products GA110 and GA97, respectively. 2-oxoglutarate + gibberellin A1 + O2 = CO2 + gibberellin A8 + succinate Binds 1 Fe(2+) ion per subunit. Expressed in panicles. Expressed at low levels in young shoots, leaf blades and elongating internodes. Plants overexpressing GA2OX6 exhibit extremely dwarf phenotype and are unable to achieve phase transition from vegetative to reproductive growth. This phenotype can be rescued by application of exogenous gibberellin (GA3). Belongs to the iron/ascorbate-dependent oxidoreductase family. GA2OX subfamily.