The underground system is a bit more of a pain to install and maintain. But if you’re really into the aesthetic aspect of your garden and don’t want any visible watering system, then you might consider it worth it. It’s essentially the same as the above ground version, only a small trench is dug for the hose or pipe prior to any planting. This allows the water direct access to the roots for the most watering efficiency. Plus, you can impress your neighbors by having a beautiful garden without ever going outside to water it! They’ll be baffled.

To choose between the two systems, you need to take several things into account. Do you have the same plant layout year round? If it is always changing, you probably won’t want to bury your hose. It can be a pain to dig it up and re-align it with all your new plants every year or so. Even if your plant layout never changes, you need to consider how much you really mind seeing a hose in your garden. If it really bothers you to the extent that you’re willing to work for a few hours to get rid of it, then by all means bury it. But otherwise I would suggest staying above ground if for nothing else than the convenience of repairing and rearranging.