Grow Diary Blueberry

Week #7 (Mid-Flower - Week #2)

This week marked the second week of mid-flower in my run, with Blueberry now fully transitioned from stretch to bud development. The plant reached a final height of 36" in early flower and developed 9–10 nodes. Since she was never topped, the natural apical structure remained intact, and her vertical growth finished strong.

With the stretch complete, Blueberry began focusing energy into bulking up the developing bud sites. Nutrient demand increased significantly during this phase. I pushed mid-flower feedings to around 1000–1200 ppm as needed. One of my Blueberry plants (Blueberry#2) showed signs of calcium and magnesium deficiency, which prompted closer monitoring and a bit more Cal-Mag support.

Lighting was intense but that was intentional. Light intensity hovered between 850–910 PPFD for my two Blueberry plants and delivered a DLI of 37–39. I also increased UV-A exposure to a maximum of 2 hours per day at this stage.

Feeding frequency increased to meet nutrient demand. I alternated between feedings and plain water and cal-mag every 2–3 days to maintain balance without overloading the medium.

In Week #2 of mid flower, aroma development was kicking in noticeably, especially with sweet and slightly berry-forward notes starting to emerge from the Blueberry colas.