Extreme can withstand a pH range of 5.4 to 7.5 and requires only a minimum of 15 inches of rainfall. It is also remarkably heat resistant and cold tolerant. In short, it's a tough product for extreme conditions. Most important, Extreme provides a high-quality protein-rich food source all year round. The kind of protein necessary to produce healthy deer and fawns and especially trophy racks in the critical 200-day antler-growing season. Just as importantly, deer are extremely attracted to the seed blend. As a matter of fact, its attractiveness actually rivals that of the legendary Imperial Whitetail Clover. 23 lbs