I can stick this in my plant, and come back next week to check and refill it's water. Incredibly handy! And looks great; so pretty. The only drawback is that it seems to loosen the soil over time as you pick it up, refill it, and stick it back in. I mitigate this by repacking the dirt when I refill it, but it definitely doesn't stay up as well as when I first got them. Because of this, I would only recommend them for larger plants so there's enough soil to rotate around.