Grow Texas Bluebonnet from fresh Lupinus texensis flower seeds. Texas Bluebonnet is a biennial flowering plant that was selected to become the state flower of Texas in 1905. They produce stunning, deep blue or indigo colored blooms. Each Texas Bluebonnet plant grows to a mature height of 8 to 12 inches tall, displaying rows of flowers along its stems. The tops of these flowers are often times white to pale yellow.
Texas Bluebonnet, as well as other Lupinus flowers are known to attract an array of beneficial insects, such as butterflies, bumblebees, ladybugs & hummingbirds as well. Texas Bluebonnets are best sown in masses for an amazing sea of colorful, deep blue blooms that last through the summer months.
The seeds appear as small rocks or gravel, and can be a bit tricky to germinate. However, with the proper technique, you will be able to grow Texas Bluebonnet from seed with no issue at all.
Sowing The Seed
Texas Bluebonnet seeds can be placed in the fridge overnight, later pouring boiling water over top of them. Let the seeds soak for several hours afterwards, allowing the water to soften the hard outer shell. Next, prepare the sowing area by removing all unwanted plants and weeds. Scatter the Bluebonnet seeds evenly to the surface of the soil. Cover thinly with 1/8″ of topsoil as the seeds will require light to germinate properly.
Growing Conditions
Texas Bluebonnet will thrive in an area of full sunlight for the majority of the day. Temperatures should be kept at 60F to 70F or higher and the soil can be sandy and loose. Just make sure that the soil is also well draining as well. To improve drainage, we recommend adding a light compost to areas of hard, compact soil. Water daily so that the soil is kept moist until germination has occurred.
Germination & Growth
Texas Bluebonnet seeds can take up to 28 days to successfully germinate, however most seeds will begin to crack open within 14 to 21 days after sowing. The plants reach a mature height of about 8 to 12 inches tall and can be spaced 6 to 8 inches apart from one another. After established, the Texas Bluebonnet will display carpets of beautiful indigo-blue flowers.