  We present a growth model for special Cosserat rods that allows for induced
rotation of cross-sections. The growth law considers two controls, one for
lengthwise growth and other for rotations. This is explored in greater detail
for straight rods with helical and hemitropic material symmetries by
introduction of a symmetry preserving growth to account for the microstructure.
The example of a guided-guided rod possessing a chiral microstructure is
considered to study its deformation due to growth. We show the occurrence of
growth induced out-of-plane buckling in such rods.
