Callistemon rigidus, commonly called the Stiff Bottlebrush, is a striking evergreen shrub native to Australia. Its defining feature is the cylindrical, brush-like spikes of vivid red flowers that resemble a bottlebrush. These eye-catching blooms appear in spring and continue into summer, attracting pollinators and adding a vibrant touch to the landscape. The shrub's narrow, leathery leaves provide an elegant backdrop to the striking flowers. Reaching a height of 2-4 meters, it's suitable for hedges, borders, and focal points in gardens. Callistemon rigidus thrives in well-draining soil and full sun. Its unique flowers and ability to attract wildlife make it a cherished addition, infusing outdoor spaces with color and life. Zones 8-11
Germination
To germinate Callistemon rigidus seeds, start by cleaning them thoroughly to remove any remaining debris. Next, prepare a seed starting tray or small pots with a well-draining seed starting mix, such as a combination of peat moss and perlite. Sow the seeds on the surface of the soil and lightly press them into the mix. Keep the soil consistently moist but not waterlogged by misting regularly or using a gentle watering can. Place the tray or pots in a warm location with indirect sunlight, maintaining a temperature between 65-75°F (18-24°C). Germination typically occurs within 2-4 weeks, but it can take longer, so be patient. Once the seedlings emerge, provide them with ample light and gradually acclimate them to outdoor conditions if transplanting. Callistemon rigidus prefers full sun and well-drained soil. Continue to care for the seedlings with proper watering and light as they grow into mature plants.
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