Gallery
This is what your GrowTower looks like
Front view with full lighting
With attached light chamber
Inside view with plant placement
Your Smart Vertical Grow Cabinet
A minimalist, space-saving home grow system. With integrated odor filter, smart light control, and web app – perfect for beginners and small apartments.
Everything you need for a successful grow
Maximize your space with the modular tower system. Adapts to plant height.
Activated carbon filter system with Arctic P14 fan effectively neutralizes odors.
ESP32-based control with web interface. Control light timer and fan via browser.
Arctic P14 PWM fan for minimal noise and optimal cooling.
All structural parts are optimized for 3D printing. PETG recommended.
No app installation needed. Simply open in browser and control.
Step by step to your own GrowTower
Start printing the structural parts in PETG (white recommended):
Solder components according to the wiring diagram:
Put the shells together:
Install the software:
Test your GrowTower:
This is what your GrowTower looks like
Front view with full lighting
With attached light chamber
Inside view with plant placement
Successfully grow with the GrowTower
Ideal for the GrowTower – produces a single large main cola:
Why no autoflower? With limited space, you want control over size and timing.
The right soil is crucial for healthy roots:
Important: Regular potting soil without amendments retains too much water – root rot danger!
Semi-hydroponic with drip system:
Use mineral fertilizer (NOT organic):
Important: Use mineral Compo Blüte, NOT Compo Complete!
Create optimal conditions:
NEVER water from above later in the grow!
Solution: Leave the crust alone or carefully scrape off the top 1-2 cm of soil and replace with fresh mix.
Always water from below throughout the entire grow.
What you should definitely not forget
With mineral fertilizer and bottom watering, salts accumulate at the soil surface (visible as white crust). This is normal - do NOT water from above to "fix" this! If it gets too thick, carefully scrape off the top 1-2 cm and replace with fresh soil.
Begin with 25-50% of recommended fertilizer dose. The soil still contains residual nutrients. Only increase if plant shows hunger signs.
In the last 10-14 days before harvest, use pure water only. This allows the plant to use up remaining nutrient salts from leaves.
Never use citric acid based pH down for pH correction. Use products with phosphoric acid like Canna pH- Bloom.
Use 50% soil + 50% perlite for excellent drainage. This prevents root rot while maintaining moisture for the wick system.
For bottom feeding, mineral fertilizer is essential. Organic fertilizers can cause odor issues and don't work well with this watering method.
All parts to build your GrowTower at a glance
Estimated total cost (excluding seeds & soil)