Fiber & Crops· Cannabis sativa

Hemp Growing Guide

An industrial fiber crop producing bast fiber for textiles, construction materials, and biocomposites. Also yields seeds for food/oil and hurds for animal bedding. Legally distinct from drug varieties with THC below 0.3%.

How Long Does Hemp Take to Grow?

Hemp is typically ready to harvest about 110 days after planting.

110

Days to Harvest

3,590

kg/hectare

moderate

Water Needs

full sun

Sun Needs

Growing Conditions

Temperature

15-27°C optimal

Rainfall

500-900 mm/year

Frost Tolerance

light

Drought Tolerance

moderate

Humidity

moderate tolerance

Heat Tolerance

moderate

Soil Requirements

Soil Type & pH

Best soil types: loam, silt loam, clay loam

pH range: 6 - 7 (optimal: 6.5)

Drainage: good

Nutrient Needs (N-P-K)

Nitrogen (N)high

Phosphorus (P)moderate

Potassium (K)high

Planting Guide

Planting Methods

direct seeding

Planting Depth

3 cm

Plant Spacing

5 cm apart, 15 cm rows

Planting Season

spring

Yield & Economics

Yield Range

1,000 - 12,600 kg/ha

Common Pests & Diseases

Common Pests

European corn borer
hemp flea beetle
slugs

Common Diseases

grey mold
sclerotinia
fusarium

Use AI crop disease detection to identify issues early and prevent crop losses.

Growing Tips

Dense planting (250-350 plants/m2) for fiber produces tall, unbranched stems with fine bast fiber.

Harvest fiber hemp at early flowering when bast fiber is strongest; dual-purpose at seed maturity.

Hemp suppresses weeds naturally through rapid canopy closure, reducing herbicide needs in rotation.

Frequently Asked Questions

How long does Hemp take to grow?

Hemp typically takes 110 days from planting to harvest. Seeds germinate in about 5 days. The best planting season is spring.

What soil does Hemp need?

Hemp grows best in loam, silt loam, clay loam soil with a pH of 6-7. Good drainage is required.

What temperature does Hemp need?

Hemp grows best at 15-27°C. Frost tolerance: light. Heat tolerance: moderate.

What is the expected yield for Hemp?

Across 7 countries with grounded data, reported national yields for Hemp range from 1,000 to 12,600 kg/hectare, with a median of 3,590. These are national statistics, not a best-case figure — an individual farm's yield depends on variety, climate, soil and management.