Review on 12-Pack OZMI Plant Self-Watering Spikes With Slow Release Control Valve - Automatic Irrigation Equipment For Home And Vacation Plant Watering, Adjustable Drip System For Optimal Water Volume by Dan Cramer

I used globes for my plants before and they did well most times. However, it couldn't control the speed of water and sometimes my plant died. This plant watering device seems to be a new version. So I bought one to built a self watering stystem for my little garden, as I had to leave home for almost one week. This little spikes surprised me a lot. It arrived in excellent condition and worked as advertised. Simple design but did great job and it can actually control the watering speed for different plants! Now I won't need to worry about my plants when I am off. Highly recommend it.