Crystallization kinetics in a homogeneous copolymer of ethene and 1-octene with appendedlong chain branches has been investigated in real time by means of time-resolved light scattering underHV (cross-polarized) and VV (parallel-polarized) optical alignments using a CCD camera system,simultaneous small angle-X-ray and wide angle X-ray measurements using synchrotron radiation anddifferential scanning calorimetry (DSC). The data show that in the case of crystallization at largesupercooling, a significant fraction of the crystallinity develops after the spherulites have become volumefilling. The fraction of crystallinity that develops after primary crystallization increases with crystallizationtemperature. This opens up a challenge to explore the extent to which this behavior is universal in othercrystallizable ethylene copolymers as well.