Castilleja integra, also known as Wholeleaf Indian Paintbrush, is a captivating wildflower. With lance-shaped leaves and intricate, showy flower spikes, it stands up to 3 feet tall. The vibrant red, orange, or yellow bracts envelop small, inconspicuous flowers. Thriving in diverse habitats and well-draining soil, it's a magnet for pollinators. This native perennial adds a burst of color to natural landscapes and wildflower gardens, while it's striking appearance and ecological importance make it a standout feature, reflecting the richness of local ecosystems. Zones 4-7
Germination
To germinate Castilleja integra, begin by cleaning the seeds thoroughly to remove any debris or pulp. The seeds will often benefit from a period of cold stratification to break dormancy and promote germination. Place the seeds in a moistened medium, such as peat moss or vermiculite, and store them in the refrigerator for 4 to 6 weeks. After stratification, sow the seeds on the surface of a well-draining, sandy soil mix, lightly pressing them into the soil. Keep the soil consistently moist but not waterlogged, and provide bottom heat or maintain a warm, bright location with temperatures around 60°F to 70°F (15°C to 21°C). Germination typically occurs within 2 to 8 weeks under these conditions. Once seedlings emerge, provide them with adequate light and gradually acclimate them to outdoor conditions before transplanting into their permanent garden location. By following these steps, The seeds will germinate reliably, eventually producing vibrant, colorful blooms that are characteristic of this unique wildflower species.
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