Astelia Banksii/Silver Needles Understandably fast becoming one of NZ's most popular landscape plants, due to its dramatic, fine silver and green foliage and dense clumping habit. Adds interesting texture to gardens and is happy growing in either sun or shade, although is more silvery in full sun. Very tolerant of coastal and dry conditions but prefers a sharply drained site. Use slug bait. 1m x 1m.