Abstract: A vine wire support post molded as integral unit from plastics has an elongate tapered supporting portion having upper end and lower end, a wire attachment provided on the supporting portion, a peg for holding support post in ground joined to lower end of supporting portion, a foot at the join between peg and supporting portion. The supporting portion is flexible and has variable sectional strength decreasing over a length of supporting portion from a position of higher sectional strength nearer lower end to a position of lower sectional strength nearer upper end.