Texas Mountain Laurel (Dermatophyllum secundiflorum)

Texas Mountain Laurel

Dermatophyllum secundiflorum

Its purple wisteria-like blooms carry sweet grape scent, a desert gem. Evergreen shrub or small tree; common name: Texas Mountain Laurel.

Full sun
1/week
Moderate
🌱

Plant Needs

☀️
Sunlight Full sun to partial shade; tolerant of intense desert sunlight; avoid prolonged full shade
💧
Watering Drought-tolerant; water deeply but infrequently, allowing soil to dry completely between waterings
🌡️
Temperature Hardy to -10°C; thrives in warm arid climates; avoid prolonged frost exposure
🔍

Characteristics

  • Leaf: Compound pinnate leaves, leathery dark green, 5–7 oval leaflets per leaf
  • Flower: Dense racemes of pea-like purple blooms with grape fragrance
  • Fruit: Woody brown pods containing bright red, toxic seeds
🛠️

Care Guide

Watering

Water deeply once every 1–2 weeks; reduce during extreme heat dormancy

Fertilization

Apply diluted low-nitrogen fertilizer once in early spring. Use fertilizer formulated for desert shrubs to avoid nutrient burn

Eggshell powder topdressing:Sprinkle crushed, baked eggshells on soil surface to boost calcium levels; avoid direct contact with shallow roots
Pruning
  • Remove dead or damaged branches in late winter to maintain shape
  • Thin dense inner growth to improve airflow and reduce pest risk
  • Avoid heavy pruning; plant grows slowly and recovers slowly from severe cuts
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed toxic; contains quinolizidine alkaloids that cause vomiting, lethargy, and potential seizures

Humans: Contains cytisine and quinolizidine alkaloids; ingestion of seeds causes severe gastrointestinal and neurological distress

📖

Garden Uses & Culture

Culture: N/A

Usage: Ornamental xeric landscaping shrub; seeds historically used in Indigenous ceremonial practices (with extreme caution due to toxicity)