China Aster (Callistephus chinensis)

China Aster

Callistephus chinensis

Daisy-like blooms paint gardens in soft hues, a cheerful annual bedding plant. Common name: China aster.

Full sun
2–3/week
Beginner
🌱

Plant Needs

☀️
Sunlight Full sun to partial shade; 6–8 hours of direct sunlight daily for optimal blooming; tolerate light afternoon shade in hot climates
💧
Watering Water deeply when the top 2 cm of soil is dry; avoid overwatering to prevent root rot and fungal growth
🌡️
Temperature Thrives in 15–22°C; avoid frost, as it is frost-tender and will die back with freezing temperatures
🔍

Characteristics

  • Leaf: Alternate, ovate to lanceolate, serrated margins, rough-textured green foliage
  • Flower: Composite daisy-like heads, 5–10 cm wide, in shades of white, pink, purple, blue, or red
  • Stem: Erect, branching, slightly hairy green stems
🛠️

Care Guide

Watering

Keep soil consistently moist but not waterlogged; water early in the morning to reduce fungal disease risk

Fertilization

Feed with diluted balanced liquid fertilizer every 2 weeks. Reduce fertilization once blooms begin to fade to avoid excessive foliage growth

Banana peel tea:Chop 2–3 banana peels, soak in 1 liter of water for 24 hours, dilute 1:10 with fresh water, and apply to soil around the base of the plant; avoid direct contact with foliage
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering throughout the growing season
  • Pinch back young stem tips when plants reach 10 cm tall to promote bushier, more compact growth
  • Remove yellowing or diseased foliage promptly to improve airflow and reduce disease risk
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects on humans

📖

Garden Uses & Culture

Culture: Symbolizes love, patience, and elegance in traditional floral language

Usage: Ornamental bedding plant, cut flower arrangements, and container displays