DrNoble Arya on Instagram: "Smart Watering Technique: Using PVC Pipes for Efficient Plant Care 1. Measure and Cut the PVC Pipe: Determine the appropriate length of PVC pipe for your plant’s root depth. For small plants, a 12-18 inch pipe is usually sufficient, while for larger trees, it may range from 2 to 3 feet. Cut the PVC pipe to the desired length using a saw. 2. Drill Holes: Create evenly spaced holes along the length of the PVC pipe. The number and size of holes will depend on the plant’s