PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dappled shade in hot Mediterranean climates to prevent leaf scorch
Watering
Water deeply when the top 5cm of soil feels dry; avoid standing water to prevent root rot
Temperature
Hardy to -10°C; benefits from mulching in cold winters to protect root systems
Characteristics
- Leaf: Deeply lobed, glossy green leaves with sharp spines along margins.
- Flower: Tall upright spikes of white or pale pink tubular flowers with prominent purple bracts.
- Stem: Thick, rigid flowering stems emerging from dense basal foliage clumps.
Care Guide
Watering
Keep soil consistently moist during active growth periods
Fertilization
Apply balanced slow-release fertilizer once at the start of growing season. Avoid high-nitrogen fertilizers to prevent excessive foliage growth at the expense of flowering
Eggshell powder topdressing：Crush dried, rinsed eggshells into fine powder; sprinkle a 1cm layer around the base of the plant in early spring and gently work into the topsoilPruning
- Deadhead spent flower spikes after blooming to maintain garden tidiness and encourage potential late-season reblooming
- Trim back faded foliage to ground level in late autumn to prepare for winter dormancy
- Remove damaged, yellowing, or diseased leaves throughout the growing season to improve airflow and reduce pest risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No known toxic effects in humans
Garden Uses & Culture
Culture: Symbolizes endurance and immortality; featured in classical Greek Corinthian column capitals
Usage: Ornamental architectural foliage for garden borders, rockeries, and container planting
