Technical Abstract: Plant uptake is a major pathway by which potentially toxic metals can enter the food chain. In this laboratory study we grew spinach, radish, and perennial ryegrass in sand blends containing 50% waste foundry sand (WFS) to assess the availability of Al, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, V, and Zn. The WFSs utilized in this study were from aluminum, iron, and steel foundries. Although there were differences in the amount of metal accumulated by the various plant species, excessive amounts of heavy metals were not taken up, regardless of WFS treatment. In particular, Cd, Co, Cr, Pb and V were not detected in the majority of plant tissues, and when detected they were at the lowest concentrations of any of the elements measured. In spinach and radish, B, Cu, Fe, Mn and Zn were found to be within or close to the sufficiency range for agronomic crops. In ryegrass cuttings at 27, 57, and 87 days, Cu and Zn were within sufficiency ranges, but plants were Fe deficient and contained elevated levels of B and Mn. Data from this study will be useful to state regulatory agencies interested in developing beneficial use regulations for WFSs.