- Introduction / Background / Need of Project
Rapid urbanization and the lack of open spaces have made traditional gardening difficult in homes, offices, and institutions. At the same time, there is an increasing need for greenery to improve indoor air quality, enhance aesthetic appeal, and support mental well-being. Vertical gardening systems offer an effective solution by enabling plant cultivation in limited spaces.
A Green Wall Hydroponic/Live Plant Wall is a soil-less vertical plant growing system that uses nutrient-rich water for plant growth. Compared to conventional soil-based cultivation, hydroponic systems consume significantly less water and allow efficient utilization of vertical space.
This project focuses on the design and development of a low-cost, self-watering hydroponic green wall suitable for indoor and semi-outdoor environments.
System Design and Optimization:
- Design of vertical wall frame structure ( lightweight).
- Integration of hydroponic channels or planters with a nutrient recirculation system.
- Selection of low-maintenance indoor plant species suitable for hydroponics.
- Optimization of nutrient solution, light exposure, and irrigation timing.
- Use of energy-efficient pump and timer-based automation for water circulation.
Objectives (write point by point) / Idea / Methodology
- To design and develop a low-cost hydroponic green wall system for indoor and semi-outdoor environments.
- To utilize vertical space efficiently for growing ornamental and indoor plants.
- To reduce water consumption through a self-watering and recirculating system.
- To improve indoor air quality, aesthetics, and thermal comfort.
- To promote sustainable, low-maintenance, and eco-friendly gardening practices.
- To provide a practical learning model for understanding hydroponics, plant selection, growing media, and light requirements.
16 Jan 2026
On 16 January 2026, a discussion meeting was held with Dixit Sir, Niraj Sir, and Kalyani Ma’am regarding the SOBT Green Wall Hydroponic Project.During the meeting, detailed discussions were carried out on the selection of suitable plants for the green wall hydroponic system. The plants considered included Crotons, Succulents, Creepers, Shrubs, and Ferns.
The discussion also covered the following key aspects :
1.Water holding capacity of the selected plants.
2.Hardness of water used in the hydroponic system
3.Selection of appropriate growing media, such as Bentonite, Vermiculite, Perlite, Cocopeat, and Clay Balls.
All these factors were discussed to ensure optimal plant growth and efficient functioning of the green wall hydroponic system.
On January 28, 2026 – Discussion with Dixit Sir
It was decided to conduct flowering plant trials for the Green Wall Hydroponic System.
Objective:
To evaluate the growth performance and adaptability of different flowering species in a vertical hydroponic setup.
Flowering plant species for the trials:
- Marigold (Tagetes spp.)
- Carnation (Dianthus caryophyllus)
- Chrysanthemum (Chrysanthemum spp.)
- Petunia (Petunia hybrida)
- Zinnia (Zinnia elegans)
- Gerbera (Gerbera jamesonii)
- Nasturtium (Tropaeolum majus)
On February 3, 2026 – Discussion with Dixit Sir, Niraj Sir, and Kalyani Ma’am
It was decided to initiate hydroponic trials of Marigold and Chrysanthemum in the Green Wall Hydroponic System.
7 Feb 2026
Doc. Of Chrysanthemum Hydroponics :
13 Feb 2026 – 15 Feb 2025
| Component | Material |
|---|---|
| Support Frame | window grill 4.1 ft (width) × 3.5 ft (height) |
| NFT Pipes | PVC pipes (75 mm) (channels 4) Reducer – 75 x 40 mm ( 8 ) 40 mm L – ( 8 ) |
| Net Pots (2 inch) | 18 Net Pot |
| Reservoir Tank | Plastic ( 40 Lit ) |
| Pump | Submersible DC pump ( 18 watt) |
| Plants |
Design of Vertical Window-Mounted Green Wall Hydroponic System
- Frame / Support:
The system is fixed on the window grill, which acts as a support for all the pipes. - PVC Pipes:
Four horizontal PVC pipes (75 mm diameter) are used one above the other.
Each pipe has holes cut on the top for planting. - Net Pots:
Small plastic net pots are fitted into these holes.
The pots are filled with coco -coir as the growing medium. - Reservoir Tank:
A blue plastic tank is placed below the window.
It stores nutrient-rich water for the plants. - Pump and Pipes:
A small submersible pump inside the tank lifts the nutrient solution up through a red pipe to the top PVC pipe. - Water Flow:
The nutrient solution flows inside the top pipe, then goes down through the PVC elbows to the next pipe, and finally to the bottom pipe.
From the bottom pipe, it returns back to the tank, completing a closed-loop system. - Plants:
Plants like colour Lettuce, Green Lettuce in the net pots.
Their roots hang inside the PVC pipes and absorb nutrients from the flowing water.
