Round Mosaic Glass Plant Watering Bulb with Clay Watering Spike

The porous terracotta spike acts as a natural regulator. As the soil around the spike dries out, it pulls water from the glass reservoir through the clay, ensuring your plant receives moisture only when it truly needs it.

Yes, this watering bulb is designed for both environments. Just keep in mind that outdoor plants may deplete the 15-ounce reservoir faster due to higher evaporation rates from sun and wind exposure.

No, the flow rate is not adjustable. The release of water is determined entirely by the moisture level of the soil and the porosity of the terracotta spike.

The bulb features a wide 1-inch opening at the top, which allows you to refill it easily without removing the spike from the soil. Simply pour water directly into the opening as needed.

We recommend bringing the unit indoors during freezing temperatures. Water remaining in the glass or the porous spike can expand when frozen, which may cause the materials to crack.

Duration depends heavily on your plant's specific water needs, the soil type, and the ambient temperature. In most standard indoor conditions, you can expect it to provide hydration for several days to a week.