  In this paper the geodesics motion and accretion process around a subclass of
Horndeski/Galileon black holes are investigated. Firstly, we present
spherically symmetric geometries in a Horndeski/Galileon black hole spacetime
by considering an isothermal fluid around the black hole. Then we focus on
three main issues: in the first step circular orbits of test particles and
their stability in equatorial plane are examined in details. Then, by treating
perturbations via restoring forces, oscillations of particles around the
central object are studied. Finally, the accretion process, the critical speed
of the flow and accretion rate are investigated in this setup properly.
