The district is bounded by Anantapur District to the northwest, Kadapa District to the north, Nellore District to the northeast, Krishnagiri District, Vellore District and Tiruvallur District of Tamil Nadu state to the south, and Kolar District of Karnataka state to the west.
Physical Characteristics. Banksia integrifolia is an evergreen Tree growing to 9 m (29ft 6in). It is hardy to zone (UK) 9 and is frost tender. It is in leaf 12-Jan It is in flower from Aug to December. The flowers are hermaphrodite (have both male and female organs)It is noted for attracting wildlife.
The new version of the plant hardiness zone map includes 13 zones representing 10-degree Fahrenheit bands, further divided into 5-degree A and B bands. Zones 12 and 13, representing average low temperatures of 50-60 and 60-70 degrees, respectively, are new to the 2012 map.