The only type of product that will stop plants from being able to grow for a year in your pea gravel would be a soil sterilant. Bonide Total Vegetation Killer
is a non-selective herbicide/mild soil sterilant and it will kill almost all plants down to the roots and it prevents new plant growth for up to one year. It is very important to read the Bonide Total Vegetation Killer product label
and follow it exactly to obtain good results. We do carry another soil sterilant, Saraha DG
, but it lasts for up to 10 years which means no plants will be able to be grown in that area and it can move through the soil killing any plants in the nearby areas. We recommend that only experienced homeowners or professionals use Sahara.