Banksia hookeriana, commonly known as Hooker's Banksia, is a striking Australian native shrub from southwest Western Australia that produces large, bright flower spikes transitioning from white to brilliant orange. Seeds germinate readily within 14-49 days when optimal conditions are maintained, requiring light exposure and warm, moist soil. This species is highly regarded in the cut flower industry and establishes quickly in well-draining, sandy soils.
Before sowing
Smoke treatment optional but recommended for improved germination. Seeds require light to germinate and do not need any other pre-treatment.
Sowing
What to expect
Tips
Maintain soil temperature at 20-25°C for optimal germination. Keep substrate moist but never waterlogged. Use plastic pots with transparent lids or create a closed container environment to retain moisture and warmth. Ventilate every 2-3 days to prevent fungal issues. Provide bright, indirect light without direct sun exposure; artificial lighting is beneficial. Transplant seedlings to individual containers once they develop first true leaves and reach 5-10 cm height. Use low-phosphorus native plant fertilizer only after transplanting, as Banksia species are phosphorus-sensitive. Do not use peat-based substrates if possible due to high moisture retention; prefer perlite-based or sandy mixes. Seeds may lie dormant if conditions are suboptimal; maintain patience as some may germinate beyond the expected window.
Sources: The Seed Collection (theseedcollection.com.au), Australian Seed (australianseed.com), Wikipedia Banksia hookeriana, Earth.com, Exotic Seed Emporium, Patricia's Flowers, Australian Plants (australianplants.com)
