Building an outdoor plant box with a built-in hygrometer is a fantastic way to keep your plants healthy while adding a stylish touch to your garden. Here’s a step-by-step guide to help you create your own.

Materials Needed:

- Wooden planks (cedar or redwood for durability)

- Screws and a screwdriver

- Drill

- Waterproof wood glue

- Hygrometer (digital or analog)

- Waterproof sealant

- Measuring tape

- Saw

Step 1: Design Your Plant Box

Decide on the dimensions of your plant box based on your space and plant needs. A common size is 24"x12"x12", but adjust as needed. Sketch a simple design to visualize the structure.

Step 2: Cut the Wood

Using a saw, cut the wooden planks into four side panels, a bottom panel, and optional trim pieces. Sand the edges to prevent splinters.

Step 3: Assemble the Box

Attach the side panels using screws and wood glue for extra strength. Ensure the corners are square. Then, secure the bottom panel.

Step 4: Install the Hygrometer

Drill a small hole in one side of the box to fit the hygrometer probe. Insert the probe into the soil area, ensuring it’s deep enough to measure moisture accurately. Secure the display unit on the outside with waterproof sealant to protect it from the elements.

Step 5: Seal and Finish

Apply a waterproof sealant to the entire box to protect it from rain and moisture. Let it dry completely before adding soil and plants.

Step 6: Plant and Monitor

Fill the box with soil and your chosen plants. The built-in hygrometer will help you monitor moisture levels, ensuring your plants thrive.

This DIY project combines functionality and aesthetics, making it a great addition to any garden. Happy building!