PlantFun
Plant Needs
Sunlight
Full sun to partial sun; tolerates coastal wind and prolonged drought conditions
Watering
Water deeply once weekly during active growth; allow soil to dry completely between waterings to prevent root rot
Temperature
Hardy to -12°C; withstands high summer heat and moderate coastal humidity without damage
Characteristics
- Leaf: Rigid, sword-shaped blue-green leaves with sharp terminal spines, forming dense basal rosettes
- Flower: Creamy white, bell-shaped blooms arranged in tall, erect panicles up to 2.5 m in height
- Stem: Short, woody stem mostly obscured by overlapping leaf bases
Care Guide
Watering
Keep soil slightly moist but not soggy; reduce frequency during extended droughts
Fertilization
Apply diluted balanced liquid fertilizer once monthly. Use low-nitrogen feed to promote flowering without excessive leaf growth
Baked eggshell powder topdress：Crush fully baked eggshells into fine powder; sprinkle 1–2 tbsp around the base of the plant to boost soil calcium and deter slugs; avoid direct contact with leaf rosettesPruning
- Remove dead or brown leaves from the base of the rosette to maintain a tidy appearance
- Cut back spent flower stalks to the base after blooming to redirect energy to new growth
- Trim sharp terminal spines if placing the plant in high-traffic areas to reduce injury risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-confirmed toxic; contains saponins that cause gastrointestinal distress and lethargy
Humans: Ingestion may cause mild gastrointestinal upset; sharp leaf spines can cause skin puncture wounds and irritation
Garden Uses & Culture
Culture: Symbolizes resilience and protection in some Southeastern Native American traditions
Usage: Ornamental garden plant; historical use of leaf fibers for cordage and basketry by Indigenous peoples
