PlantFun
Plant Needs
Sunlight
Full sun exposure required for abundant flowering; tolerates partial shade with reduced bloom production
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot
Temperature
Hardy to -10°C; prefers warm, dry summers and cool winters; protect from prolonged heavy frost
Characteristics
- Leaf: Narrow, silvery-gray linear leaves with dense pubescence; aromatic when crushed
- Flower: Spikes of tiny purple-blue florets on tall, stiff stems; highly fragrant
- Stem: Woody basal growth with soft green upper branches; upright, spreading habit
Care Guide
Watering
Water deeply when top 5 cm of soil is dry; reduce frequency during rainy periods
Fertilization
Diluted balanced liquid feed once monthly. Use low-nitrogen feed to promote flower production over foliage growth
Eggshell powder topdress：Crush dried eggshells to fine powder; sprinkle lightly on soil surface and water in to release calcium graduallyPruning
- Deadhead spent flower spikes promptly to encourage extended blooming
- Prune back one-third of growth in early spring to maintain compact, bushy form
- Remove woody, leggy stems to stimulate new, vigorous green growth
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic; no adverse effects reported with ingestion or contact
Humans: No known toxic effects on humans; safe for culinary and aromatic use
Garden Uses & Culture
Culture: Symbolizes calm, relaxation, and devotion; widely used in aromatherapy for stress relief
Usage: Ornamental garden plant; commercial essential oil production; culinary garnish for sweet and savory dishes
