Planetesimal disk mass and initial planet core position of giant planets forming in disks of different lifetimes. Markers show the distribution of all planets classified as “cluster 3: giant planet” in a_start −M_solid,0 space, color-coded by the lifetime of their nascent disk. We overplot isolines of planetesimal masses corresponding to specific growth timescales τ_grow for reaching a core mass of 10 M_⊕. Giant planet growth is limited by the disk lifetime, and the formation of giant planets far out requires high planetesimal masses and long lifetimes.