PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates bright indirect light for indoor cultivation
Watering
Water deeply when the top 5–7 cm of soil is dry; avoid waterlogging to prevent root rot
Temperature
Thrives in warm temperatures; protect from frost below 10°C to prevent leaf damage
Characteristics
- Leaf: Long, pinnate fronds (1–3 m) with stiff, dark green leaflets arranged in a spiral crown
- Stem: Thick trunk covered in persistent, woody leaf bases
- Reproductive Structures: Male plants produce cone-shaped reproductive structures; females bear large, seed-bearing megasporophylls
Care Guide
Watering
Keep soil evenly moist but not soggy; increase frequency during hot, dry periods
Fertilization
Diluted balanced slow-release fertilizer once every 2 months. Avoid over-fertilization to prevent salt buildup in soil
Eggshell powder top dressing：Crush dried eggshells into fine powder; sprinkle lightly on soil surface and gently work into top layer; avoid direct contact with roots to prevent irritationPruning
- Remove brown, dead fronds at the base to maintain plant appearance and improve airflow
- Trim damaged or yellowed leaflets to prevent pest infestation
- Remove spent reproductive cones after seed dispersal to conserve plant energy
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; contains cycasin which may cause vomiting, diarrhea, lethargy, and liver failure
Humans: Contains cycasin; ingestion can cause abdominal pain, vomiting, and liver damage in severe cases
Garden Uses & Culture
Culture: Symbolizes longevity and prehistoric resilience in tropical landscape design
Usage: Ornamental focal point in gardens; indoor container plant for bright spaces
