Three Brothers Wattle Seeds | Acacia courtii

Place the seeds in a heatproof glass or ceramic container.

Carefully pour near-boiling water over the seeds and allow the water to cool naturally while they remain immersed. The hot-water treatment helps overcome the naturally water-resistant seed coat.

Leave the seeds to soak for approximately 12 to 24 hours.

Seeds that have absorbed water should become visibly swollen. If an individual seed remains small and hard, lightly abrade a small area of the outer seed coat with medium-grade sandpaper until the lighter layer beneath is just visible.

Do not cut deeply into the seed. Return any carefully scarified seed to warm water and allow it to swell before sowing.

Fill pots, deep propagation cells or native tubes with a fine, free-draining native seed-raising mix or suitable sand-based propagation medium.

Sow swollen seeds approximately 5 mm deep and cover lightly with growing medium.

Avoid rich mixes containing excessive fertiliser or high levels of phosphorus.

Maintain approximately 20 to 28°C where practical.

Keep the growing medium evenly moist but never waterlogged. Provide bright conditions with protection from harsh midday sun while seedlings are young.

Under suitable conditions, germination commonly begins within approximately 2 to 6 weeks. Individual seeds can emerge at different times, so continue maintaining suitable conditions rather than discarding sound ungerminated seed too early.

Once seedlings are well established and sturdy enough to handle, transfer them carefully into individual deep pots or native tubes to provide adequate room for root development.

Maintain reliable moisture while young plants establish, then gradually acclimatise them to stronger light and their intended growing position.