Gahnia clarkei
Landscape value
Gahnia clarkei, commonly known as Saw Sedge, is a large growing sedge that makes a great screen plant and can be used as a back drop for other foliage plants. It is perfect for wet & dry areas. Best kept away from pedestrian traffic as it has serrated edged leaves that may cut if handled or brushed against.
Height
1.5 metres to 2 metres
Width
1.5 metres to 2 metres
Habit
Very large clumping sedge with green serrated edged foliage
Flowers and Fruit
Late Spring & Summer with 500mm+ long large black to brownish flowers with seed heads that produce small red seeds.
Aspect
Full sun to 90% shade. Protected coastal aspects. Grows well inland and will handle cold and frost to –10ºC. Gahnia are very tough, drought tolerant plants.
Soil Type
Sandy loam, clay loam, light clays.
Maintenance
Trimming is rarely needed, but if so reduce the foliage by half in spring. Fertilize with slow release fertilizer after trimming.
Available Sizes
Viro-tubes
Planting Rates