6 to 1 inch to avoid dying. What Deals Does Seed City Have. In 6 to 8 weeks after your second feeding, feed again with Scotts Turf Builder with SummerGuard to control insects.  Source: [url=http://gravitazzcontinental.com/blog/2013/06/10/cultivate-your-green-thumb-buying-and-growing-cannabis-seeds/]http://gravitazzcontinental.com/blog/2013/06/10/cultivate-your-green-thumb-buying-and-growing-cannabis-seeds/[/url]