The concept behind the spot drill is the idea if chipping to a specific spot on the green as your target. Many players chip using this line of thinking, as it as a great way to simplify what can be a complicated shot.
Boston ivy can climb walls as high as 50 to 60 feet and features new growth that starts out as a reddish-bronze color before turning green in the summer. There are a variety of cultivars that feature brilliant fall foliage color.
The Oxford team tested ivy-covered walls at three of the university's colleges - Trinity, Pembroke and Worcester - as well as buildings in Dover and Leicester. They found ivy acted as a thermal blanket, warming up walls by 15 per cent in cold weather and cooling them in hot weather by an average 36 per cent.