Smart Pebble | Plant Care From ElhoSmart Pebble Plant Care Monitor water, nutrition, temperature & light. Receive automatic care updates in the accompanying app. Ask for advice from the AI Chatbot. Your very own plant whisperer, telling you exactly what your plant needs, sounds like something we all want, right? This smart device hides in your flowerpot and helps you understand how your plant is feeling. It automatically indicates when your plant needs more water, nutrients, and light,