As its name suggests, the Silvertip strain was reportedly developed in Bozeman in the late 2000s. This local strain is certainly the most well known to have come out of Montana. It is a cross of Grandaddy Purple and Super Silver Haze. It is white to purple in color and is packed with THC. I personally had it tested at 22.9%, making it the most potent strain I carried at that time and I was told it was the second highest test result the lab had ever gotten. The Silvertip can treat many symptoms — from migraines to chronic pain from injuries and surgeries. This stain can cause anxiety, particularly to those with limited experience and tolerance levels. But for the experienced smoker, Silvertip will relieve anxiety and leave a lasting impression.