Lupinus texensis.
Texas Bluebonnet is a hardy winter annual native to Texas.
Adopted as the State of Flower of Texas, it is one of the most commonly seen wildflower varieties along roadsides and uncultivated pastures throughout the state.
Plants grow to a height between 12 and 24 inches, with blooms appearing in late spring and early summer.
The flowers, which are a striking, deep blue and densely arranged on a spike with an ice-white tip, are an important food source for butterflies, bumble bees, honey bees, and other pollinators, and are the host plant for the gray hairstreak butterfly.
Texas Bluebonnet
Growth Chart
Hardiness Zones: 3 to 10 Light Requirement: Full sun Soil Type: Average, slightly alkaline Sow Depth: 1/2 inch Plant Spacing: 10 inches Germination Temp: 65°F to 70°F Germination Time: 6 to 10 days Maturation: 95 days Growing Tips
To soften the hard coating on these Texas bluebonnet seeds, rub them lightly with sandpaper or soak them in 180°F water overnight before sowing. Sow them in early spring, planting 1/2 inch deep. Keep the soil lightly moist until germination.