It rolled into town earlier this week and has hung around like a bad smell ever since. The worst smog to engulf the Indian capital this season has stung the eyes of rickshaw drivers, clouded a champagne-laden celebration on the lawn of the Australian High Commission and, according to local media, caused a multi-car pile up on a Delhi highway.
Nandina is deciduous only in very cold climates where temperatures fall below -10 degrees. It is semi-evergreen in zones 6-9 and evergreen in zones 8-10. Nandina domestica thrives in full sun to partial shade and prefers to be grown in a moist well-drained soil.
Although 'Nana' and other nandina varieties are evergreen shrubs in much of their hardiness range, they will be deciduous and lose leaves if winter temperatures go below 10 degrees Fahrenheit. If this happens, the plants will sprout new leaves in spring. The other likely plant stressor may be drought.