Question: How much and how often should I water?'
Answer: Give big trees and large shrubs three buckets of water twice a week – that's about the same as letting the hose or watering system run gently for 45 minutes. Avoid mini-watering – letting the water run every day for 20 minutes – as it produces plants with a shallow rooting system. As for plants in containers, water them almost every day depending on size and rainfall. When in doubt, use the knuckle test: Stick your finger into the container and if it's dry above the first knuckle, water slowly until it runs out the bottom of the pot.