PlantFun
Plant Needs
Sunlight
Requires full sun exposure for optimal flowering; tolerates partial shade but produces fewer blooms
Watering
Drought-tolerant once established; water deeply but infrequently to prevent root rot
Temperature
Hardy to -10°C; withstands high summer heat up to 38°C; avoid prolonged frost exposure
Characteristics
- Leaf: Silvery-gray, oblong to lanceolate leaves with woolly texture, releasing strong sage aroma when crushed
- Flower: Spikes of deep violet-blue tubular flowers clustered in dense whorls
- Stem: Woody, branching stems with grayish-brown, peeling bark as it matures
Care Guide
Watering
Water deeply every 7-10 days until fully established; reduce frequency once mature
Fertilization
Lightly feed with low-nitrogen fertilizer once in early spring. Over-fertilization can reduce aromatic foliage quality
Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle lightly on soil surface 6 inches from the base of the shrub to avoid root burnPruning
- Prune lightly after flowering to maintain a rounded, compact shape and encourage new growth
- Remove dead, damaged, or crossing wood in early spring to improve airflow
- Avoid heavy pruning into old, woody stems, as they may not regrow vigorously
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic; no known adverse effects for cats
Humans: Non-toxic to humans; safe for culinary and herbal use in moderation
Garden Uses & Culture
Culture: Used in Native American traditional practices for its aromatic and mild medicinal properties
Usage: Ornamental garden shrub; dried leaves for herbal tea, potpourri, and aromatic crafts
