Scrog – stand for SCReen Of Green. It involves suspending a screen (with 2×2″ squares) 18-24″ above the base of the plants. This is essential for properly filling out your grow room and supporting the colas during late flowering. ‘Scrogging’ allows you to maximize yields while working within the confines of 4 plant maximums.
Local Classifieds or Home Building Store:
2 pcs 1/2″ PVC pipe 8′ length (pro tip: cheapest PVC is found in the electrical section and used as conduit)
Amazon:
100 LB Monofilament
12pcs 1/2″ 4-way PVC Connectors
Step Drill
Handsaw
Trellis Net Material
I have tried a number of materials for the trellis net and have finally settled on using a very thick monofilament fishing line (100 lb test or greater). The advantages of monofilament are:
- Will not pill or splinter strands of fiber like many commercial trellis nets
- Easy to sterilize and clean between grows (I use rubbing alcohol to clean)
- Transparent material so light can penetrate through
- When using thick line it will not cut into the plants. DO NOT use thin fishing line
- Cost-effective (I paid $12 for a roll that will last a lifetime)
Trellis Net Construction
I like to make the trellis net the same size as the DWC water reservoir.
Drill holes every 2-3″ and thread the 100lb monofilament line through like you would a tennis racquet.
Use zip ties or glue to secure the frame to the lid. You can even just rest the trellis net on top of the DWC reservoir without attaching it to the lid.
Use 4-way PVC connectors so that you can add 10″ risers as your plants grow. I have not found it necessary to run a second screen but it is nice to have a fence to keep taller colas from falling over
Pro Tip: If you are using 17 gallon (64L) Home Depot HDX containers you will need the following for every lid
L: 23.65″
W: 14.75″
H: ~15-20″ depending on strain stretch level.
You can use this calculator the help minimize offcuts as shown below.
