Growth of planet at a = 1 au (left) and a = 5 au (right).For clarity, only cases with an initial core of 16 M_⊕ and 13 M_⊕ are shown (left and right panels, respectively). Top panels: evolution of the mass of heavy elements. Bottom panels: evolution of the total planet mass. Colour-bar: initial surface density of solids. Green shaded area: region where the meteoritic time constraints are met (up to M_P ~ 50 M_⊕).