From the Adafruit forums comes a project by jim_lee which uses a 3D housing and a glass jar to build a soil moisture and watering node. A display can be viewed outside the case, making the insides water resistant.
A pump can be activated to water plants if it senses the soil is too dry via a STEMMA I2C soil sensor.
You can follow along as things are finalized on the Adafruit Forums.
The Adafruit Forums are a great place to post your questions and have Adafruit staff look to assist. The Adafruit Discord server is also available and a bit more real time.