An agricultural stake to support plant includes a fiberglass reinforced plastic (FRP) elongated member comprising a top end and a bottom end, and an exterior coating impregnated with an aggregate covering an exterior surface of the elongated member. The exterior coating is configured to provide purchase to a line attached to the elongated member. A cap may be secured over the top end of the elongated member and is configured to withstand a force used to drive the elongated member into a ground surface