Dutch Passion created feminized seeds in the 1990 s. If you re planning to use a weed and feed product with a post-emergent herbicide on your growing turf, wait until the grass roots anchor deeper into the soil and the lawn is established. Weed Research 30 61 70.  Source: <a href=https://cakesdecor.com/topics/4151-buttercream>https://cakesdecor.com/topics/4151-buttercream</a>