The dark green leaves have a silvery underside, which adds to the beauty of the foliage. The pale yellow flowers open from late summer to winter. Plants are frost tolerant. Banksia marginata - Silver Banksia Silver Banksia is a very variable species which may grow from 1 to 12 m, depending on the origin of the plant. Plants are hardy and will grow in a variety of soils and climates.
Most forms are frost tolerant.
The leaves have a silvery underside. The flower heads range from greenish yellow to bright yellow and open from late summer to winter. This is the only banksia which occurs naturally in the Canberra region. The rugged bark, serrated leaves and large flowers of this banksia give it a distinctive appearance of great value in landscaping. Plants may grow from 2 to 12 m.