The name Texas bluebonnet blossoms resemble the bonnets of pioneer women. Bluebonnets are also known by the name buffalo clover, wolf flower & Texas lupine.
Bluebonnets were adopted as Texas’ state flower in 1901 and in 1971 the legislature designated all species of the Bluebonnet as the state’s flowers. Bluebonnets are a species of lupine and are native to the U.S. You will find the Bluebonnet en masse along roadsides and pastures throughout Texas in the spring. The name bluebonnet came about because the blossoms resemble the bonnets of pioneer women. Bluebonnets are also known by the name buffalo clover, wolf flower and Texas lupine.
There are 5 different varieties of Lupinus: L. subcarnosus, L. texensis, L. Havardi, L. concinnus, and L. plattensis. However, L. texensis, or Texas bluebonnet, is the most widely spread in Texas and produces various shades of blue blossoms. Whereas you will find L. Havardi in the Big Bend part of the state and L. subcarnosus in southern and coastal Texas.
You can find rare pink Bluebonnets in San Antonio. Local legend has it that the pink hue is the result of the bloody battle of the Alamo when the river turned red from the blood of the defenders.
Bluebonnets do not do well in clay or poorly drained soils.
Common Name: Texas Bluebonnet
Genus: Lupinus texensis (loo-PIE-nus teck-SEN-sis)
Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee)
Species: L. texensis
Height: 6-12 inches (15-30 cm)
Spacing: 12-15 inches (30-38 cm)
Hardiness: USDA Zones 3a to 8b
Sun Exposure: Full sun
Bloom Color: Blue violet/lavender, white
Bloom Time: March to May
Soil pH Requirements: 6.6 to 7.5 (neutral)
Water: Average water needs; water regularly; do not over water
Propagation Method: From seed, direct sow outdoors in fall about 1/8″ deep.
Seed Collecting: Bag seed heads to capture ripening seed
Special Features: Fragrant, attracts butterflies, drought tolerant
Danger: Seed is poisonous if ingested