🌼 Flowering – Week 2 (Days 36–42) 10/18 (Day 36 – Start of Week 5): Watered with the same nutrient solution as last week (2.5 ml/L CalMag + 1.4 ml/L Coco A + 1.4 ml/L Coco B). Not adding PK yet — I’ll wait until the stretch fully ends before introducing it. Measured heights today: tallest = 122 cm, shortest = 61 cm, average = 84 cm. Did not measure runoff this time. 10/19 (Day 37): Average vertical growth today: +4.66 cm, showing the stretch is slowing down. Watered again with the same solution as yesterday. The canopy remains uneven, with clear height differences between phenotypes — I’ll adjust pot heights soon to improve light distribution. Plants look healthy overall, no visible stress or nutrient issues. 10/20 (Day 38): Watered with water + CalMag + AN Micro (micronutrient maintenance day). Adjusted the height of the shorter pots, and now PPFD across the canopy is much more uniform. Average daily growth was +5.33 cm — the defoliation slowed them down briefly, but they’ve regained momentum. The tallest plant is now 132 cm, and I’ve had to raise the lights to their maximum height — any further stretch could become a problem for space. 10/21 (Day 39): Watered with the same nutrient solution as before, increasing total volume to 1.5 L per plant to achieve about 25% runoff. Performed a massive defoliation — foliage density was too high, and the dehumidifier couldn’t keep up with transpiration. Suspect that the excessive stretch was partially due to insufficient light intensity, since readings were only ~360 PPFD when ideal for this stage is 500–600 PPFD. Raised light intensity to 430 PPFD to gradually correct this. 10/22 (Day 40): Same watering as yesterday (1.5 L, ~25% runoff). Runoff: EC 1000, pH 6.6 Plants look strong and are adapting well to the increased light. Tomorrow I’ll introduce PK 13/14 at low dosage to initiate the first phase of bloom boosting. 10/23 (Day 41): Watered with 1.5 L. Introduced 0.3 ml/L PK 13/14 (first light dose) and 0.5 ml/L AN Micro after noticing one plant showing small brown spots between leaf veins (possible early micronutrient deficiency). Runoff: EC 1000, pH 6.6 Plants look stable overall, no visible stress from new additives. 10/24 (Day 42 – End of Week 5): Watered again with the same solution as yesterday. Input/Runoff: EC 1000, pH 6.6 Humidity has been difficult to control — RH stays around 60%, which lowers VPD. Planning to increase airflow and raise temperature slightly to improve VPD levels and moisture evacuation. Week 5 Summary 🌸 Stage: End of stretch and transition to full flower development. 📈 Growth: Height stabilized around 130 cm (tallest). Stretch nearly complete. ⚙️ Feeding: Base mix: 2.5 CalMag + 1.4 A/B (EC 1300). Runoff steady at EC 1000 / pH 6.6, indicating perfect nutrient uptake. Introduced PK 13/14 (0.3 ml/L) and AN Micro (0.5 ml/L) for bloom support. 💧 Watering: 1.5 L with 25–30% runoff per plant. No salt buildup detected. 💡 Lighting: PPFD increased from 360 → 430 µmol/m²/s after noticing under-lighting. Canopy adjusted by raising pots; more uniform distribution achieved. ✂️ Defoliation: Heavy leaf removal on Day 39 to control RH and open airflow. 🌡️ Environment: RH stable around 60%, but VPD slightly low (target ~1.2 kPa). Working to improve air exchange and temperature for better balance. 🌿 Overall health: Strong recovery after defoliation, no new deficiencies or stress. Early bud stacking visible. ➡️ Plan for Week 6 – Flowering Week 3 (Days 43–49) 🎯 Objective: Consolidate flowering, strengthen bud sites, and maintain climate stability. Nutrients: Maintain base feed at EC 1300–1400 µS, pH 5.8 ± 0.1. Increase PK 13/14 slightly to 0.4–0.5 ml/L if no stress appears. Keep AN Micro 0.5 ml/L once per week for micronutrient balance. Environment: Target VPD 1.1–1.3 kPa (temp ~26–27 °C, RH 50–55%). Improve dehumidification and circulation — consider stronger exhaust or intake fan cycles. Lighting: Increase PPFD to 500-600 µmol/m²/s. Monitor for any light stress at canopy level (tallest plants close to the lamp). Defoliation: No more heavy pruning — just remove large leaves shading bud sites. Observation: Track bud swelling and trichome development. Watch humidity closely during night cycles to avoid mold risk.