I have at least 20-30 POTTED plants/trees peppered around my brick courtyard and they're all doing well. Problem is, we'll be going on holidays after Xmas (4 weeks) and am wondering how to water them automatically? In fact, it would be nice to not hose them every 2 days as I do now, so whatever I set up before we go will be a permanent fixture. Any ideas? If its a timer and irrigation hose, greatly appreciate if you can post appropriate Bunnings links so I can buy them on the weekend. The staff at Bunnings are borderline useless for advice. To be fair, I'm pretty useless myself. Look forward to some foolproof suggestions.