PlantFun
Plant Needs
Sunlight
Full sun exposure required for robust growth and flowering; tolerates light afternoon shade in hot arid climates
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot and fungal issues
Temperature
Hardy to -5°C; prefers warm, dry conditions; protect from prolonged heavy frost
Characteristics
- Leaf: Narrow, gray-green leaves with distinctly fringed, serrated margins; aromatic when crushed
- Flower: Dense, cylindrical spikes of purple-blue florets topped with pale violet bracts; highly fragrant
- Stem: Woody, branching stems covered in silvery, fine pubescence
Care Guide
Watering
Water deeply once weekly when top 5 cm of soil is fully dry
Fertilization
Diluted balanced liquid feed once monthly. Avoid over-fertilization to prevent leggy growth and reduced flowering
Banana peel compost tea：Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 with water for root drench; avoid raw peels to prevent pest infestationsPruning
- Deadhead spent flower spikes promptly to encourage continuous blooming through the growing season
- Trim back one-third of woody growth in early spring to maintain a compact, bushy shape
- Remove dead or damaged stems to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic; no known adverse effects if ingested
Humans: No toxic effects; may cause mild skin irritation in highly sensitive individuals
Garden Uses & Culture
Culture: Associated with calm, relaxation, and purification; widely used in aromatherapy practices
Usage: Ornamental garden plant, potpourri ingredient, and source of aromatic essential oils
