We investigate the lattice coupling to the spin and charge orders in the striped nickelate, La$_{1.75}$Sr$_{0.25}$NiO$_4$, using time-resolved resonant x-ray scattering. Lattice-driven dynamics of both spin and charge orders are observed when the pump photon energy is tuned to that of an E$_u$ bond- stretching phonon. We present a likely scenario for the behavior of the spin and charge order param eters and its implications using a Ginzburg-Landau theory.