Cannabis
Cannabis sativa
A seedling with small, serrated, fan-shaped leaves emerging from a central stem. At this early stage, it shows its characteristic lobed and jagged leaf margins.
- Light
- Full sun, requiring 12-18+ hours of high-intensity light per day depending on the growth stage.
- Water
- Water when the top inch of soil feels dry. Seedlings require moist but not waterlogged soil; overwatering causes 'damping off'.
- Growth
- Annual herb; fast-growing, reaching 3-13 feet depending on variety and environment.
Care instructions
Provide abundant light (18+ hours for seedlings), maintain warm temperatures (70-80°F), and ensure high humidity for young plants. Use airy, nutrient-rich soil.
Growing details
Sunlight
Full sun, requiring 12-18+ hours of high-intensity light per day depending on the growth stage.
Watering
Water when the top inch of soil feels dry. Seedlings require moist but not waterlogged soil; overwatering causes 'damping off'.
Soil
Well-draining, loamy soil rich in organic matter with a pH between 6.0 and 7.0.
Hardiness zone
8-11 (grown as an annual in most climates)
Growth habit
Annual herb; fast-growing, reaching 3-13 feet depending on variety and environment.
Bloom season
Late summer to autumn (photoperiod dependent); produces small green/yellow flowers in clusters.
Propagation
Typically grown from seeds or stem cuttings (clones) taken during the vegetative stage.
Common pests & issues
Spider mites, aphids, powdery mildew, and root rot. Susceptible to nutrient deficiencies (nitrogen, phosphorus).
Similar species
Cleome (Spider Flower) and Japanese Maple seedlings, which have similar palmate leaf structures but different textures and scents.
Interesting facts
Cannabis is one of the oldest cultivated crops in human history, used for textiles and paper for thousands of years.