Week 26 – Flowering Week 4 Pineapple Upside-Down continues its flowering phase smoothly this week. No major events to report, which is exactly what we want at this stage. Flower development is clearly accelerating, with a noticeable floral explosion across the canopy. Some bud sites are already showing solid volume, and aroma production is now very present. Foliage quality remains poor and is no longer a focus. At this point, energy is clearly redirected toward flower production, and the plant confirms it visually. Lighting has been adjusted to sit in a productive range: approximately 650–750 PPFD under the canopy and 800–850 PPFD on the main apexes, putting the average comfortably between 700 and 800 PPFD. Environmental control is a priority. Day temperature sits around 27°C, with relative humidity pushed to 70–75% to maintain a VPD between 0.9 and 1.0. This balance is critical during weeks 3 to 5 of flower. A fresh nutrient solution was mixed at the start of the week. Final EC is set at 2.3, slightly higher than last week, mainly driven by an increased PK input. Base nutrients (Bloom A & B) remain unchanged at 2 ml/L. Additives include PK at 2 ml/L, CalMag at 2 ml/L, Cleanse at 1 ml/L, and Balance used to buffer the base water. pH is adjusted to 6.2 and allowed to naturally drift between 6.2 and 5.7. A light defoliation was performed, along with removal of small lower shoots to prioritize apex development. Structural work is now finished — from here on, the goal is full stability and uninterrupted flowering. See you next week!