Cover of The Plant Sensor That Watered Too Much

Junie shares a small dorm room with her roommate Tobin. They keep one plant on the windowsill, a little succulent named Pickle. Tobin buys a smart sensor for it before their big trip home.

"It waters Pickle for us," Tobin says. "We just set it and forget it."

He pushes the sensor into the soil. He taps a few buttons on his phone. A tiny light blinks green. They pack their bags and leave for the weekend.

When they come back on Sunday night, the room smells strange. Water sits in a small pool under the plant pot. Pickle's leaves look soft and dark, not firm and green.

"What happened?" Junie asks. She picks up the pot and checks the soil. It is completely soaked.

Tobin opens the app on his phone. A long list of waterings fills the screen. The sensor gave Pickle water every hour for three days.

"I think I picked the wrong plant type," Tobin says slowly. "I set it for a fern, not a succulent."

Junie laughs and shakes her head. "A fern needs a lot of water. A succulent needs very little."

Tobin finds the plant settings in the app and changes them. He picks "succulent" from a short list. The app asks for watering only once a week.

They move Pickle to a dry spot near the open window. Junie checks on it every day after class.

Slowly, over the next two weeks, new green leaves appear. Pickle grows strong again, one small leaf at a time.

🧠 Check your understanding

  1. What does Tobin buy for their plant, Pickle?

    Show answer

    Answer: A smart sensor

    Tobin buys a smart sensor for the plant before their trip.

  2. What mistake did Tobin make in the app?

    Show answer

    Answer: He set the plant type for a fern, not a succulent

    Tobin says, "I set it for a fern, not a succulent."

  3. What do Junie and Tobin do to fix Pickle?

    Show answer

    Answer: They change the app settings and move Pickle to a dry spot

    Tobin changes the plant settings, and they move Pickle near the window to dry out.

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