The appeal appears to be rooted in young people having a desire to make their homes and gardens a nicer place to be, to improve mental health, and create a space they can escape to.
It also emerged gardening is so popular that young adults spend close to two hours during a typical week taking care of their beloved plants.
Kev Smith, head of marketing at Draper Tools, which commissioned the survey, said: "The popularity among young adults is fantastic to see, we knew it was popular, but even we were surprised by the outpouring of love for it.
"There's a tendency to think of gardening as an activity for older people, but this poll proves that gardening really is for everyone, whatever your age.
"Gardening is a very calming activity, as well as a rewarding one—everyone can enjoy the benefits it brings."
The survey found the most popular houseplants among those polled are cacti, orchids, and aloe vera, followed by basil, spider plants, and peace lilies.
Outdoors, the most common are daffodils, roses, and lavender, along with tulips, mint, and hydrangea.