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Cardamom

Crop details

Cardamom

Elettaria cardamomum
Family: Zingiberaceae

Quick stats

Family Zingiberaceae
Typical harvest 0.8 t/ha
Varieties 3
Pests & diseases 5
Seasons 0

Crop profile

Growth habit perennial
Days to harvest 365
Main uses Green/ dried capsules for spice, beverages and flavouring.
Pollination insect
Origin / where it grows Grows in cool, humid, shaded high rainfall zones; niche pockets exist in East African highlands with forest shade or agroforestry.

Weather, soil & spacing

Best temperature 18–28 °C
Rainfall 1800–3000 mm/yr
Altitude 600–1800 m
Best pH 5.5–6.5
Soil type Deep, well-drained forest loam with very high organic matter; thrives under shade.
Row spacing 200 cm
Plant spacing 200 cm
Planting depth 5 cm
Seed rate kg/ha (check local recommendation)
Nursery days

Simple notes for farmers

About the crop: This crop is perennial, which means once you plant it, the same plant can keep producing for many years. You can normally start harvesting about 365 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for green/ dried capsules for spice, beverages and flavouring..

Pollination: This crop is mainly pollinated by insect. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.

Where it grows: Grows in cool, humid, shaded high rainfall zones; niche pockets exist in East African highlands with forest shade or agroforestry. It is grouped under: Spices & Condiments.

Best climate: This crop does well in warm areas where the temperature is usually between 18 and 28 degrees Celsius. It prefers places that receive around 1800 to 3000 millimetres of rain in a year. It can grow from near sea level up to about 1800 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.5 to 6.5. It does well in deep, well-drained forest loam with very high organic matter; thrives under shade.. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 200 centimetres apart, and leave about 200 centimetres between plants in the row. This gives each plant enough space for roots and canopy to spread.

Planting depth: Dig planting holes or furrows about 5 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use good quality seed or healthy planting material. Follow local extension advice for the exact amount per hectare.

Farmer guide (mwongozo wa mkulima)

Planting: Use healthy suckers/seedlings from disease-free clumps. Plant at onset of rains under filtered shade. Incorporate lots of compost/mulch and keep beds raised on slopes.
Transplanting: Firm soil around clumps; provide temporary shade screens if needed.
Irrigation: Keep soil moist at flowering and capsule filling. Mulch thickly to conserve moisture.
Fertigation: Split small feeds through the season; more N early for tillering, K around flowering for capsule set and quality.
Pest scouting: Scout for capsule/shoot borers, thrips (bronzing), aphids and rhizome rots. Remove heavily infested shoots.
Pruning: Maintain shade at ~50–60%; remove dry/old pseudostems and keep clumps open.
Harvest: Pick capsules every 2–3 weeks when well formed but still green. Dry promptly to retain colour and aroma.
Postharvest: Wash lightly, blanching optional, then dry in solar/air dryers at low temperature until brittle; store airtight.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal before rains 0 NPK 15-15-15 + compost 150 kg/ha (plus 6–10 t/ha compost) N: 22, P₂O₅: 22, K₂O: 22 Blend lightly; avoid root injury.
2 Early topdress 60 CAN 26% N 120 kg/ha N: 31, P₂O₅: 0, K₂O: 0 Apply on moist soil; mulch back.
3 K boost at flowering 120 Sulfate of potash (SOP) 120 kg/ha N: 0, P₂O₅: 0, K₂O: 60 Improves capsule set and colour.

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 30 kg/ha
P₂O₅ Basal 30 kg/ha
K₂O Basal 40 kg/ha
N Topdress_early 30 kg/ha
P₂O₅ Topdress_early 10 kg/ha
K₂O Topdress_early 40 kg/ha
N Flowering_fill 20 kg/ha
P₂O₅ Flowering_fill 0 kg/ha
K₂O Flowering_fill 40 kg/ha

Field images (picha shambani)

Cardamom
Primary
Cardamom
Cardamom
Cardamom
Cardamom
Cardamom
Name Country Maturity Traits
Malabar-type selection KE 730 Good aroma; suited to shade gardens.
Njallani/Green Gold type TZ 730 High tillering, bold capsules where adapted.
Local small cardamom selection UG 730 Locally adapted under agroforestry shade.
Stage Product Rate (kg/ha) Notes
Basal NPK 15-15-15 + compost 150 With heavy organic mulch.
Topdress CAN 26% N 120 At 2 months after planting/flush.
Flowering/fill SOP (K₂SO₄) 120 Supports capsule formation and quality.
Name Type Symptoms Management
Shoot and capsule borer pest Remove infested shoots; maintain shade and sanitation; use recommended selective controls when needed.
Thrips pest Keep humidity with mulch/shade, encourage natural enemies; targeted sprays if heavy.
Aphids pest Control ants, spot treat; remove highly infested shoots.
Rhizome/soft rot (Pythium complex) disease Well-drained beds, clean planting material, remove affected clumps quickly.
Leaf blotch/anthracnose disease Improve airflow and shade balance; protectants during wet spells if required.
System Typical Min Max Notes
Low-input shade gardens 0.35 0.2 0.5 Basic mulching and weeding; minimal fertilizer.
Managed plantations (rainfed) 0.7 0.4 1 Shade regulation, manuring and pest control.
Intensive with irrigation 1.2 0.8 1.5 Good clonal material, steady moisture, careful harvest/drying.
No season calendars yet.
Country Region Suitability
KE Forest-edge highlands with reliable rainfall
TZ Southern & Northern highlands (shaded valleys)
UG Moist highland agroforestry belts