Top panel: stellar metallicity vs. the minimum planetary mass of planets around evolved stars (giants and subgiants). Red squares and blue triangles represent giant and subgiant stars, respectively. The dotted black line represents 0.95 M_Jup. Multi-planet systems are connected by solid lines. Middle panel: [Fe/H] vs. M_psini for planets around subgiants. Bottom panel: [Fe/H] vs. M_psini for planets around giants. Here, empty red squares indicate giants with M_⋆> 1.5 M_⊙ and filled squares indicate giants with M_⋆ ≤ 1.5 M_⊙. In all cases, control samples are marked with black crosses.