1. The flow rate can be controlled. The plant watering device with a control valve can control the drip rate of 0-60s/1 drip, and the sustained drip lasts for 1-15 days;
2. Simple and convenient, without any tedious installation, just drill some holes in the bottom of the bottle or cut the end of the bottle;
3. Exact amount of water. Supply different amounts of water to different plants and flowers.