Hemp (Cannabis sativa)
sativa
About this plant
Cannabis sativa is a fast-growing plant known for its tall, slender appearance and narrow leaves. It is widely cultivated for its fibers, seeds, and medicinal or recreational uses. The plant produces distinctive flowers and has been used historically for textiles and oils.
Taxonomy
Higher classification: Rosales
Origin & Distribution
- Native region
- Central Asia, South Asia
- Distribution
- Cultivated worldwide in temperate and tropical regions, originally native to Central and South Asia.
Care
- Suitable locations
- Outdoor, Greenhouse, Indoor
- Preferred window facing
- South-facing, Southwest-facing, West-facing
- USDA hardiness zones
- 8-11
- Soil pH
- 6.0-7.0
- Soil type
- well-draining loam
Watering. Water regularly to keep soil moist but not soggy. Allow the top inch of soil to dry out between waterings.
Fertilizing. Use a balanced fertilizer during the vegetative stage and switch to a phosphorus-rich fertilizer during flowering. Fertilize every 2-3 weeks for best growth.
Cannabis sativa grows quickly and prefers plenty of light and well-draining soil. It needs regular watering but avoid waterlogging. Watch for pests like spider mites and mold if humidity is too high. Moderate maintenance is needed to keep it healthy.
Propagation
- Propagation methods
- Seeds, Cuttings
Ornamental features
- Flowering
- Yes
- Flowering period
- late summer to early fall
Slender leaves with serrated edges and dense flower clusters during blooming.
Toxicity & Safety
Non-toxic but may cause allergic reactions in sensitive individuals. Keep away from children and pets to avoid accidental ingestion.
Allergy information
People sensitive to cannabis pollen or contact with the plant may experience allergic reactions such as skin irritation, sneezing, or respiratory issues. Those with pollen allergies should avoid exposure during flowering. Wearing gloves can reduce skin contact reactions.
Common problems
Overwatering can cause root rot, while too little light slows growth. Pests like spider mites and powdery mildew may appear if conditions are poor.
Uses
Used for fiber production, medicinal and recreational purposes, and as an ornamental plant in some gardens.
Notes
Prune regularly to improve airflow and light penetration. Repot young plants as they grow. Sensitive to frost and extreme cold.