Planting in spring will require cold stratification or scarification to break down the tough outer shell. If you're growing Texas Bluebonnets in a cooler climate with a winter freeze that would kill tender Bluebonnet seedlings, then it's best to plant seeds in the spring. Early October gives them the most time to establish roots before winter. Seeds are best planted in October or November. Transplants should also be planted in the late fall. Cooler weather and exposure to a few months of precipitation will help to naturally break down the outer casing of the seed. Planting Times: Texas Bluebonnet's hard seed coat makes it a great candidate for fall planting. If planting individually, plant 2-3 seeds together with ten inches between the next planting, thinning to one strong plant after true leaves develop. Plant 1 pound per 700 square feet (see coverage rate chart under "Plant Information" for Texas Bluebonnets). Spacing: If broadcasting seeds, clear the soil and roughen the area well. As with all wildflowers, seeds need good contact with the soil for best results with germination. Prepare your area before planting - Texas Bluebonnets do not like competition or being crowded by other plants. If planting in containers, good drainage is essential. Soil: Texas Bluebonnets can thrive in poor soil and disturbed soil. South or west-facing exposures offer the most sunlight. Light: Bluebonnets need a sunny position to do well. It can take some time to establish a large stand of Texas Bluebonnets, as the seeds can be finicky with their specific requirements. If conditions are favorable in your garden, the plants will set seed and reproduce. It germinates, grows, flowers, and sets seed over the course of one year.
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