Cosmos Plant
Cosmos (Cosmos bipinnatus) is an annual that grows 2-6 ft tall, hardy in USDA Zones 2-11, prefers well-drained, sandy soil, full sun, medium moisture, and has no edible or medicinal uses.
Habit
upright
Height
1-1.5 m
Growth
Fast
Soil
Well-drained, loamy soil
Shade
Full Sun
Moisture
Moderate
Edible
No
Medicinal
No
Origin
Mexico
Climatic Condition
Tropical, Subtropical
Temperature (°)
20-25°C
Humidity (%)
50-70%
Potting media
Loamy mix
Fertilizers
Balanced fertilizer
Watering
Moderate watering; drought-tolerant once established
Plant Weight
0.5-1 kg
Flowering Time
Summer to Fall
Soil Ph level
6.0 - 7.5
Water Ph level
6.0 - 7.5
Soil EC
1
Yield Per Plant
Primarily ornamental; not typically harvested for yield
NPK ratio
10:10:10
life Span
Annual
Health Benefits
Attracts pollinators; used in traditional medicine.
Suggested Grow Media or Potting Mix ?
50% loamy soil, 30% compost, 20% sand
Suggested Fertigation/Fertilizers
Fertilize every 4 weeks with a balanced fertilizer.
Common Diseases and Remedies
Powdery Mildew, Gray Mold, Aphids, Leaf Miner, Stem Rot
White powdery growth on leaves Gray, fuzzy mold on leaves and flowers Yellowing leaves, sticky residue on leaves White, winding trails on leaves Brown or black stem lesions, wilting
Neem oil, baking soda spray Improve air circulation, remove affected parts Insecticidal soap, ladybugs Neem oil, spinosad Improve soil drainage, avoid overhead watering
Sulfur-based fungicides, Iprodione or thiophanate-methyl, Insecticides containing imidacloprid, Systemic insecticides, Fungicides containing thiophanate-methyl.
HEALTH BENEFITS
- Antimicrobial & Antioxidant: Contains bioactive compounds that help fight infections.
- Liver Protection: Some species are used in herbal medicine to support liver health.
- Anti-inflammatory: Used in folk medicine to reduce swelling and pain.