Grow Diary Blueberry

Starting in late veg and continuing until harvest, I water to the point that I get 10-20% runoff so that I can keep track of PH and PPM. With hot soil mediums like Fox Farm Ocean Forest, it is often the case that I have to initiate a light flush in late veg / early flower to bring PPM into the range the plants want, therefore mitigating lockout issues.

For early flower I am aiming for a runoff PPM of 1000-1200 and a runoff PH of 6.2-6.3. If my numbers are lower than the recommended range for the growth stage, I feed the plants at a PPM in the range of where I want them to be. If the numbers drift a little higher than the ideal number, I water for a day or two until the runoff lets me know it is time for another feeding. If PH starts to drift, I adjust the input PH of my solution to slowly bring things into range.

I had to feed Blueberry once in the first week of flower and water needs greatly increased at this time. Whether I water or feed, I provide the same volume and track runoff metrics. In early flower, I am typically giving 3-4 L of water every day, occasionally skipping a day so the medium can dry out a bit. At this point during the grow cycle, it is also necessary to raise the light every couple of days in order to maintain an appropriate distance between the light and the canopy.

I counted 6-7 days between the time I flipped from 18/6 to 12/12 before pistils appeared at stalk-node intersections, marking the beginning of early flower. The plants grew 7-8 inches during the transition phase and in the first week of flower all plants grew an addition 10-12 inches.

In my pictures, Blueberry is on the left and Stardawg is on the right.