Conventional mulches of straw, pine needles, or wood chips are good, but avoid weed infested hay mulches. Planted areas should be sufficiently moist for four to six weeks during seedling germination and development. When irrigation is not possible, plant in anticipation of seasonal rains, usually late fall and winter. Other than hand pulling, several control practices can be used. Tall weeds can be treated with a wick application of Roundup or Finale.
Isolated weeds can be spot sprayed with an appropriate herbicide.
Grassy weeds can be oversprayed with herbicides which are specific for grass control. Mowing can be an effective management tool for weed control when weeds are mowed before seeds mature. Mowing is a valuable maintenance practice. Trimming the perimeter areas defines the wildflower area. Desired annuals and perennials should be overseeded after fall clean up.