HeizraumGrower Welcome to my Micro Grow Diary!
Since legalization in Germany, growing has become a true passion. For me, it’s all about experimenting with technology, nutrients, and environmental conditions rather than focusing on high yields. This run is dedicated to the art of micro-growing.
The Setup:
Substrate: 6L Plagron Pro Mix with a 20% Perlite mix and a Biobizz Lightmix "nest" for the seedling.
Germination: She popped her head out just 72 hours after dropping the seed.
The Strategy: Inspired by the SOG (Sea of Green) technique usually used for clones, I will be flipping this plant to 12/12 very early to keep her compact. My goal is to maintain 4–6 main colas using early topping and some LST to ensure an even canopy height.
Nutrients: 100% mineral feeding using the Plagron Terra line.
Given this strain can reach 300cm, I'm fully aware of the stretch potential and hope my plan to keep it low works out. Once I flip to 12/12, I'll be pulling out all the stops regarding VPD, nutrient ratios, and day/night temperature swings to minimize vertical growth, though my experience with micro grows shows that the timing of the flip remains the most critical factor.
I'm happy to hear any comments, tips, suggestions, or experiences you'd like to share. More to come...
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Used method
Directly In Substrate
Germination Method
1
Week 1. Vegetation
7d ago
1/5
6 cm
Height
18 hrs
Light Schedule
25 °C
Day Air Temp
6.0
pH
No Smell
Smell
500 PPM
TDS
65 %
Air Humidity
0 °C
Solution Temp
21 °C
Night Air Temp
6 liters
Pot Size
30 cm
Lamp Distance
Nutrients 1
Terra Grow
1.5 mll
HeizraumGrower The seedling is developing well, even though it looks a little pale at the moment. I have watered it very sparingly and added only a tiny amount of Terra Grow. I recently lowered the humidity to 65%
Regarding temperatures, I intentionally allowed them to fluctuate and occasionally heated the room.
The light is now set to 40% intensity and is located 30 cm away from the canopy.
Daily water consumption approx. 140ml | PPFD around 260 | DLI 16.9
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2
Week 2. Vegetation
1h ago
1/8
18 hrs
Light Schedule
25 °C
Day Air Temp
5.9
pH
No Smell
Smell
850 PPM
TDS
60 %
Air Humidity
0 °C
Solution Temp
21 °C
Night Air Temp
6 liters
Pot Size
30 cm
Lamp Distance
Nutrients 1
Terra Grow
5 mll
HeizraumGrower High Folk!The plant developed very well throughout the second week. I watered twice without any runoff. The first feed was at an EC of 1.0 (pH 5.9), and for the second watering, I increased the nutrients to an EC of 1.7 (pH 5.9) using Plagron Terra Grow. Daily water consumption has now surpassed 300ml.
Environmentally, I am continuously lowering the relative humidity to steadily increase the VPD. The light intensity was gradually stepped up to 60% at a fixed distance of 30cm, which delivers around 384 PPFD and a DLI of 16.6.
Next steps: I plan to top the plant very soon. After a short recovery phase, I will flip the light schedule to 12/12 to initiate flowering as early as possible.
