Complete Farming Guide
Coffee Farming Guide
Coffea arabica / Coffea canephora
10.5 million tonnes produced globally — the world's most traded tropical commodity
Coffee is the second most traded commodity in the world after crude oil, supporting the livelihoods of over 125 million people across the tropical belt. Arabica coffee (grown at higher altitudes, prized for flavor) accounts for 60% of production, while Robusta (lower altitude, higher caffeine, hardier) accounts for 40%. Brazil, Vietnam, Colombia, Ethiopia, and Indonesia are the top producers. Coffee is a perennial shrub that begins producing in year 3 and can yield economically for 20-30 years with proper management.
Quick Facts
Growing Season
Perennial — flowers after dry period, harvest 7-9 months later
Growth Period
7-9 months from flowering to harvest (3 years to first production)
Optimal Temp
15-24 degrees C (Arabica) / 22-30 degrees C (Robusta)
Water Needs
1500-2500mm annually
Top Producer
Brazil
Yield / Acre
0.5-1.2 tonnes green beans/acre (well-managed plantation)
Coffee Growth Stages — What to Do at Every Stage
Nursery & Transplanting
Months 0-8 (nursery) + TransplantingWhat to do
Raise seedlings in shaded nursery for 6-8 months until they have 4-6 pairs of leaves. Transplant at the start of rainy season. Dig holes 50x50x50cm, mix topsoil with 5kg compost per hole. Space at 2.5x2.5m (640 plants/acre) for Arabica, 3x3m for Robusta. Provide 50% shade for first year.
Watch for
Damping off in nursery from overwatering. Transplant shock — water immediately and mulch heavily. Sunburn on seedlings if shade is removed too quickly.
Vegetative Growth (Years 1-2)
Years 1-2 after transplantingWhat to do
Shape the plant through single-stem or multiple-stem training. Apply balanced NPK fertilizer 3-4 times per year (50g N, 20g P2O5, 50g K2O per plant per year). Maintain 5-8 cm organic mulch around the base. Establish shade trees (Grevillea, Inga, Erythrina) if not already present.
Watch for
Leaf miner damage on young foliage. Coffee leaf rust can establish even on young non-bearing plants. Weed competition — keep a 1m weed-free radius around each plant.
Flowering
Triggered by rain after dry period (1-2 weeks)What to do
Flowering is triggered by the first significant rain after a dry spell of 2-3 months. Ensure adequate nutrition before flowering — apply potassium-rich fertilizer. Multiple flowering events produce mixed-maturity cherries, complicating harvest.
Watch for
Black rot of flowers from Colletotrichum in very wet conditions. Poor fruit set from drought stress or nutrient deficiency during flowering. Multiple small flowering events produce uneven ripening.
Cherry Development
Months 1-7 after floweringWhat to do
This is when bean size is determined. Apply majority of annual fertilizer during this phase (split into 2-3 doses). Maintain irrigation or pray for consistent rainfall. Maximum nutrient demand is at 3-4 months after flowering.
Watch for
Coffee Berry Disease (CBD) in Arabica — dark sunken lesions on developing cherries. Berry borer beetle entry holes. Die-back from nutrient exhaustion (overbearing die-back) if crop load is very heavy.
Ripening & Harvest
Months 7-9 after flowering (2-4 month harvest window)What to do
Harvest selectively — pick only red, fully ripe cherries for best quality. Plan for 3-4 picking rounds spaced 10-14 days apart. Process within 24 hours of picking (wet or dry method). Prune after harvest to maintain shape and productivity.
Watch for
Over-ripe cherries (dark red/black) produce off-flavors. Under-ripe green cherries lower cupping scores. Coffee berry borer damage is most visible now — look for small holes at the tip of the cherry.
Common Coffee Diseases — Identification Guide
Coffee Leaf Rust
Hemileia vastatrix
What you will see
Orange-yellow powdery pustules on the underside of leaves. Upper leaf surface shows yellow spots that correspond to the pustules below. Severely infected leaves drop, leading to "die-back" of branches and reduced yield the following season.
Conditions that favor it
Warm, humid conditions (21-25 degrees C), altitude below 1600m (for Arabica). Rain and wind spread spores. Can cause 30-50% yield loss. The 2012 Central American rust epidemic devastated entire regions.
Coffee Berry Disease (CBD)
Colletotrichum kahawae
What you will see
Dark, sunken lesions on developing green cherries that expand and turn black. Infected cherries shrivel and mummify on the branch. Can destroy 50-80% of the crop in severe outbreaks. Most damaging to Arabica at high altitude.
Conditions that favor it
Cool, wet conditions at high altitude (above 1500m). Frequent rain and temperatures of 15-22 degrees C during cherry development. Found mainly in Africa (Kenya, Ethiopia, Cameroon). Not present in the Americas.
Root Rot (Armillaria)
Armillaria mellea
What you will see
Progressive yellowing and wilting of the canopy over months. White fungal mycelium (looks like a white sheet) found between the bark and wood at the root collar. Honey-colored mushrooms may appear at the base during wet season. Plants eventually collapse and die.
Conditions that favor it
Waterlogged soils, poorly drained fields, and land recently cleared from forest. The fungus spreads via root-to-root contact and can persist in dead tree stumps for years.
Cercospora Leaf Spot (Brown Eye Spot)
Cercospora coffeicola
What you will see
Circular brown spots with a gray center and dark brown margin on leaves, resembling a brown eye. On cherries, similar spots cause premature ripening and lower bean quality. Severe on nutrient-deficient plants.
Conditions that favor it
High rainfall, poor nutrition (especially nitrogen and potassium deficiency), and exposure to direct sun (unshaded coffee). Often a sign of stressed, poorly managed coffee rather than a primary pathogen.
Common Coffee Pests — Identification & Damage
Coffee Berry Borer (Hypothenemus hampei)
Damage
The most destructive insect pest of coffee worldwide. Female beetles bore into the cherry and lay eggs inside the bean, where larvae feed and develop. Damaged beans lose 10-30% weight and are downgraded or rejected at export. Global losses estimated at $500 million/year.
How to identify
Tiny (1.5mm), dark brown to black beetles. Look for a small round entry hole at the tip (navel) of the cherry. Cut open suspect cherries — larvae, pupae, or adults may be inside. Use red alcohol traps (ethanol + methanol 1:1) to monitor populations.
Leaf Miner (Leucoptera coffeella)
Damage
Larvae mine between the upper and lower leaf surfaces, creating irregular brown blotches that reduce photosynthesis. Heavy infestations cause premature leaf drop and weakened plants.
How to identify
Small (2mm), white moths lay eggs on leaf upper surfaces. Mines are visible as translucent brown patches when leaves are held up to light. Larvae are tiny green caterpillars inside the mine. More severe in unshaded, sun-exposed coffee.
Green Scale (Coccus viridis)
Damage
Scale insects suck sap from leaves and stems, excreting honeydew that promotes sooty mold growth. Sooty mold blocks light and reduces photosynthesis. Heavy infestations weaken plants and reduce yield.
How to identify
Flat, oval, green to yellowish insects (3-5mm) on undersides of leaves and on stems. Shiny, sticky honeydew and black sooty mold are telltale signs. Ants often "farm" scale insects for honeydew — controlling ants helps control scale.
Coffee Nutrient Management — NPK Guide
Nitrogen
100-150 lb N/acre/year for bearing trees, split 3-4 applications
Phosphorus
25-40 lb P2O5/acre/year
Potassium
100-150 lb K2O/acre/year — coffee is a heavy potassium feeder
Application Timing
Split annual fertilizer into 3-4 applications aligned with rainy periods: first dose after harvest/pruning, second at pre-flowering, third during fruit development, fourth at fruit fill. Organic mulch (coffee pulp, compost) at 5-8 tonnes/acre/year provides slow-release nutrients and improves soil structure.
Coffee Irrigation Schedule
Total Water Requirement
60-100 inches (1500-2500mm) annual water requirement
Critical Stages
Flowering (a single dry-then-wet trigger is needed), early fruit development (months 1-3 after flowering), and fruit expansion (months 4-6). Drought during fruit expansion causes small, light beans.
Irrigation Frequency
Most coffee is rainfed. Where irrigation is available, drip irrigation at 3-5 liters/plant/day during dry periods is optimal. Arabica needs a distinct dry period (2-3 months) to trigger synchronized flowering.
Coffee Economics — Cost, Yield & Profit
Cost per Acre
$1,000-2,500/acre/year (established plantation)
Yield per Acre
1,000-2,400 lb green beans/acre
Revenue per Acre
$1,500-4,800/acre at $1.50-2.00/lb green beans
Profit per Acre
$500-2,300/acre
Regional Context
Coffee profitability is highly volatile, driven by the global C-market price (Arabica) and London Robusta price. Specialty coffee with high cupping scores (84+) can command $3-10/lb, dramatically increasing margins. Certification premiums (Fair Trade, Organic, Rainforest Alliance) add $0.10-0.30/lb. Initial plantation establishment costs $2,000-4,000/acre (land prep, seedlings, shade trees) with no income for the first 2-3 years. Full production is reached at year 5-6.
Frequently Asked Questions — Coffee Farming
How long does it take for a coffee plant to produce?
A coffee seedling transplanted from the nursery will produce its first small crop in year 3, with yields increasing each year until the plant reaches full production at year 5-6. A well-managed Arabica plant can produce economically for 20-30 years. Many plantations in Brazil, Colombia, and Kenya have 30+ year old trees still yielding well. However, after 15-20 years, production often declines and farmers practice "stumping" — cutting the trunk at 30-40cm height to force regrowth from the base, which restores vigor within 2 years.
What is the difference between Arabica and Robusta coffee?
Arabica (Coffea arabica) is grown at 1000-2000m altitude, has a complex, nuanced flavor, contains less caffeine (1.2%), and is more susceptible to pests and diseases. It accounts for 60% of global production and commands premium prices. Robusta (Coffea canephora) grows below 800m, has a stronger, more bitter taste with higher caffeine (2.2%), and is hardier against pests (especially coffee berry borer) and leaf rust. Robusta is mainly used in instant coffee and espresso blends. Some farmers in transitional zones grow both species on different parts of their land.
How do I manage coffee leaf rust?
Coffee leaf rust (Hemileia vastatrix) is managed through an integrated approach. First, plant resistant varieties — F1 hybrids like Ruiru 11 (Kenya), Castillo (Colombia), or Catimor lines offer good resistance. Second, maintain balanced nutrition, especially potassium, which strengthens plant defenses. Third, manage shade — moderate shade (30-50%) reduces rust severity. Fourth, apply copper-based fungicides (Bordeaux mixture or copper hydroxide) preventively at 3-4 week intervals from the start of the rainy season. Systemic fungicides (cyproconazole, triadimefon) are used for curative control. Finally, maintain good field sanitation — remove mummified berries and prune for air circulation.
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