Texas Bluebonnet (Lupinus texensis)

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Texas Bluebonnet Plant Care

Lupinus texensis Hook.

Updated · Sources · How we source care data

Lupinus texensis, the Texas bluebonnet or Texas lupine is a species of lupine found in Texas, and the Mexican states of Coahuila, Nuevo León, and Tamaulipas. With other related species of lupines also called bluebonnets, it is the state flower of Texas.

🌳Trees🌿Shrubs🌼Perennials🍃Climbers & Vines
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

50–80°F

Humidity

40–60%

At a glance

How do you care for Texas Bluebonnet?

Water Texas Bluebonnet every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–80°F (10–27°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.

Where Is the Texas Bluebonnet Native To?

Native range2 countries

What Is the Texas Bluebonnet?

Texas Bluebonnet (Lupinus texensis) belongs to the Fabaceae family within the Lupinus genus. Texas Bluebonnet is native to Texas, Louisiana, Arkansas and the Mexican states of Coahuila, Nuevo León, and Tamaulipas. Texas Bluebonnet is also known as Texas Lupine, Lupinus leonensis, Lupinus texensis.

Texas Bluebonnet displays an upright, bushy perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Texas Bluebonnet produces showy spikes of pea-like flowers in various colors.

Leaf size: approximately 4 inches.

How Often Should You Water a Texas Bluebonnet?

Lupinus texensis requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Texas Bluebonnet Need?

Texas Bluebonnet thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Texas Bluebonnet Prefer?

Lupinus texensis grows best at temperatures of 50–80°F. Texas Bluebonnet prefers humidity levels of 40–60%.

Temperature

50–80°F

Humidity

40–60%

What Soil Mix Works Best for a Texas Bluebonnet?

Well-draining sandy loam with added organic matter. Good drainage is essential for Texas Bluebonnet to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Texas Bluebonnet?

Feed Texas Bluebonnet every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

How Do You Repot a Texas Bluebonnet?

Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Texas Bluebonnet?

Texas Bluebonnet can be propagated through seeds. Similar propagation techniques also apply to lupine plant care, which shares the same genus.

Is the Texas Bluebonnet Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Texas Bluebonnet, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Texas Bluebonnet?

Texas Bluebonnet is susceptible to aphids, leafhoppers, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Texas Bluebonnet Need?

Texas Bluebonnet grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Texas Bluebonnet is native to Texas, Louisiana, Arkansas and the Mexican states of Coahuila, Nuevo León, and Tamaulipas. In cooler regions, grow Texas Bluebonnet as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Texas Bluebonnet is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Lupinus genus — compare its care with other Lupinus species on PlantoScan.

Lupinus is part of the Fabaceae plant family — browse all Fabaceae genera and species.

Texas Bluebonnet thrives in bright light and direct sun — see other bright-light plants.

More Lupinus Species

Other Lupinus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Lupinus texensis Hook., family Fabaceae (first published in Bot. Mag. 63: t. 3492 (1836)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Texas Bluebonnet, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: Loadmaster (David R. Tribble) This image was made by Loadmaster (David R. Tribble). Email the author: David R. Tribble Also see my personal gallery at Google Photos, CC BY-SA 3.0, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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