Greenwall

Raffles Hospital Vertical Greenwall

This project is one of my favorites’, completed in collaboration with my team. The vertical green wall consists of two parts: an indoor section and an outdoor section. We incorporated seven types of colorful plants, which contribute to the wall’s attractive appearance. Let’s delve into the details of this green wall.

1. C-Channel Installation: We began by installing C-Channels measuring 150mm x 25mm x 5mm on the wall, ensuring precise measurements and alignment.
2. Panel Installation: Next, we installed the complete panels, covering them with a protective blanket to maintain plant health.
3. Irrigation System and Growth Lights: For the inner top part of the green wall, we set up an irrigation pipe and timer. Additionally, growth lights were used to encourage plant growth, creating a lush environment akin to a beehive. The lights were programmed to be ON for 12 hours, from 1800 to 0600.
4. Plant Placement and Watering: Each pocket was meticulously planted according to the drawings. We lightly sprayed water over all the plants. Using a timer, we watered the green wall once a day. Our system employed three timers with varying water flow times:
   • The first timer at the top of the green wall dispensed water for 7 minutes.
   • The second timer, positioned in the middle, sprayed water for 4 minutes.
   • The third timer, located at the lower part, allowed water flow for 2 minutes.
5. Reason for Different Timer Settings: The staggered timer durations serve a purpose. Water from the top panel gradually trickles down to the lower panels. By reducing the middle and lower timer durations, we prevent excessive water accumulation, which could lead to root rot.
6. Vertical Greenwall Plastic Pockets Panel: We utilized plastic pockets designed for vertical green walls.
7. Components for Plant Growth:
   • Loose Coco Peat: 30%
   • Vermiculite: 15%
   • Medical Stones (a soil ingredient for plants): 15%
   • Leca Balls: 20%
   • Plants Jelly Balls: 10%
   • Peat Moss: 10%
8. All these components were thoroughly mixed and filled into the vertical green wall panel.

Note: Properly filling the components in the panel is crucial. If not done correctly, the plants’ roots won’t be able to absorb water. The irrigation system ensures that water reaches the plants through the panel’s components. Regularly topping up the components is essential as they settle due to water absorption.

1. Nitrophoska Perfect 15+5+15 Application:
   • Apply 3 to 5 pieces of Nitrophoska Perfect 15+5+15 fertilizer to each pocket on the green wall.
   • After applying the fertilizer, manually spray water to ensure it gets wet. This step is crucial; otherwise, the plants may dry out and perish.
2. Pruning Overgrown Plants:
   • To maintain a healthy green wall, trim the overgrown plant heads.
   • Then, replant the empty spaces on the green wall panel. This encourages balanced growth and ensures optimal use of available space.

Remember, applying these two tricks to your green wall will yield impressive results. Happy gardening! 🌿🌱