Use 12 layers of newspaper before you lay the landscape cloth. The nenwspaper will become part of the soil,enriching it and kill anything it is laying on top of. I never dug any beds in my yard for years. Just layed the newspaper, covered with mulch (pretty heavy first year - 4-5 inches) and then planted. Usually I did this in early march or a warm day in late Feb. Was able then to plant in May with no problems. I have even done the process and not planted for a year. The weeds get killed and the mulch makes it hard for them to come back.