On a quiet night, farmers say they can hear corn grow. But for most others, the constant sounds plants make are inaudible without technology like Ms. Adar’s to bring them to life. By allowing visitors to interact with audible plants, she hopes to evoke a new perception of these photosynthesizing organisms: not as inanimate objects for humans to control, but as living co-inhabitants, just as important to this planet as we are.

Sound plays an important role in scientific discovery. Researchers found gravitational waves, mapped the seafloor and created pictures of babies in wombs — just by listening to vibrations bounce and shift when they struck otherwise invisible objects. Listening to plants, and understanding how they interact with sound, could lead to discoveries, too

To make the invisible visible, Ms. Adar “audiolizes” plants. At the garden, she has also planted sensors with succulents and cactuses indoors. When visitors touch the plants , sensors pick up vibrations, normally inaudible to humans. For a one-on-one experience, these sounds travel through a wire into a machine for amplification and delivery through headphones. For others, a prerecorded track of these plant bodies plays through a large speaker mounted in the room.

“That way the plants can listen to each other,” Ms. Adar said.

Here’s the sound of flicked cactus spines, brushed trunks or rubbed leaves between fingers.