Gahnia sieberiana
Landscape value
Gahnia sieberiana, like Gahnia clarkei, is also commly called Saw Sedge because the foliage is serrated and can cut if handled or brushed against. 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.
Height
1.5 metres to 2 metres
Width
1.5 metres to 2 metres
Habit
Large, clumping plant with green to glaucous serrated strappy leaves
Flowers and Fruit
Late Spring & Summer with 500mm to 700mm long large black flowers/seed heads that produce small oval shaped red seeds. Flowers and seed heads make a great display and can be used in floral arrangements.
Aspect
Full sun to 90% shade. Protected coastal aspects. Grows mainly on the coast. 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. Flowers and seed heads can be dead headed if desired.
Available Sizes
Viro-tubes
Planting Rates