how can i deter squirrals from my pots and planters

i find that a benjamin .20 caliber air rifle keeps them at bay....

if that is not your forte...i have also tried using something called *squirrel
repellant*... actually made for bird seed feeders, but i have noticed that
when the seeds get into the planter box almost directly below the feeder, we
have sun flowers germinating within a week....

squirrel repellant.. made by GADJIT OUTDOORS.. McNaughton, Inc Mpls, MN