🌱 A Complete Guide to Planting SL28 & SL34 Coffee Seedlings in Kenya
By Kenya Coffee School & Barista Mtaani
Kenya’s world-renowned SL28 and SL34 coffee varieties are celebrated globally for their exceptional cup quality. However, achieving this excellence begins long before harvest—it starts with proper planting and disciplined early-stage management.
This guide provides a complete roadmap on what to do immediately after planting and how to manage your coffee throughout the year for optimal yield, plant health, and bean quality.
☕ 1. Before You Plant (Preparation is Everything)
Successful coffee farming starts with proper land and soil preparation.
✔ Site & Soil Selection
- Choose deep, well-drained, fertile soils
- Ideal pH: 5.5 – 6.5 (slightly acidic)
✔ Hole Preparation
- Dig holes: 2 ft x 2 ft x 2 ft
- Separate topsoil and subsoil
✔ Soil Enrichment
Mix topsoil with:
- 20–30 kg well-decomposed manure
- Phosphate fertilizer (DAP or TSP)
✔ Spacing Guidelines
- 2m x 2m → intensive farming
- 2.5m x 2.5m → recommended (better airflow & disease control)
✔ Planting Time
- Best done at onset of rains:
- March–May
- October–December
🌿 2. Immediate Care After Planting
The first few weeks are critical for survival and root establishment.
💧 Watering
- Water immediately after planting
- Continue 2–3 times per week if rainfall is inadequate
🌱 Mulching
- Apply dry grass or leaves around the base
- Benefits:
- Moisture retention
- Weed suppression
- Soil temperature regulation
🌳 Shade Management
- Provide temporary shade using:
- Banana leaves
- Shade nets
- Prevents heat stress and transplant shock
🚫 Early Pest & Disease Prevention
- Apply preventive copper-based fungicides
- Monitor for:
- Aphids
- Leaf miners
🪴 Staking & Protection
- Use stakes to support against wind
- Protect from livestock and physical damage
🌾 3. First 3–6 Months (Establishment Phase)
During this phase, your goal is strong root and vegetative growth.
✔ Field Maintenance
- Weed every 2–3 weeks
- Maintain consistent mulch cover
✂️ Light Pruning
- Remove:
- Dead shoots
- Weak or diseased growth
🧪 Early Feeding
- Apply CAN (Calcium Ammonium Nitrate) after 3 months
- Rate: ~50g per plant
- Apply in a ring around the plant (avoid stem contact)
🌳 4. Year-Round Coffee Management Calendar
🌦️ Rainy Season (March–May / Oct–Dec)
🌱 Fertilization
- Apply:
- NPK (17:17:17 or 20:10:10) for growth
- Organic manure for soil health
🌿 Weed Control
- Keep farm clean to reduce nutrient competition
🦠 Disease Control
- Prevent and manage:
- Coffee Leaf Rust
- Coffee Berry Disease (CBD)
☀️ Dry Season (Jan–Feb / June–Sept)
💧 Irrigation
- Critical for young plants—water regularly
🌿 Mulching (Highly Critical)
- Increase mulch thickness to conserve moisture
✂️ Pruning & Training
- Establish single stem system
- Remove:
- Suckers
- Unwanted shoots
🧪 5. Simplified Feeding Program
| Stage | Fertilizer | Frequency |
|---|---|---|
| 0–3 months | Manure + DAP | Once (at planting) |
| 3–12 months | CAN / NPK | Every 3–4 months |
| 1 year + | NPK + Manure | 2–3 times per year |
👉 Always apply fertilizer after rainfall or irrigation
🐛 6. Spraying & Pest Control
Common Pests:
- Coffee Berry Borer
- Aphids
- Leaf Miners
Common Diseases:
- Coffee Leaf Rust
- Coffee Berry Disease (CBD)
Spray Routine:
- Preventive spraying every 3–4 weeks during rainy season
- Use:
- Copper-based fungicides
- Approved insecticides (only when necessary)
⚠️ Rotate chemicals to prevent resistance build-up
🌟 7. Key Success Tips for SL Coffee
✔ Always use certified seedlings
✔ Prioritize soil health and organic matter
✔ Avoid over-fertilization—balance is key
✔ Consistent pruning improves yield and structure
✔ Early-stage care determines long-term productivity
🚀 Projection
Growing SL28 and SL34 coffee is more than farming—it is a long-term investment in quality, discipline, and precision.
With proper management, your farm can consistently produce:
- ☕ High yields
- ☕ Premium specialty-grade coffee
- ☕ Strong market value
Kenya Coffee School & Barista Mtaani remain committed to empowering farmers through training, innovation, and best agricultural practices—because great coffee begins at the farm. 🌱
