The ground is filled with more than semicursed treasure chests and fully candied dinosaur bones. Let nature's soil sitters watch over your subterranean cache with today's Groupon: for $10, you get $25 worth of plants and garden supplies at Frey's Greenhouse in Lebanon.

With a sprawling selection of annuals, perennials, shrubs, vegetables, and more, Frey’s Greenhouse has helped gardeners spruce up their yards for more than 40 years. Blooming geraniums ($3.49) and other annuals set up shop year after year, and perennials such as impatiens ($1.49 for a 4-pack) can hardly wait to host summertime garden parties. Visitors may choose from dozens of hanging baskets to adorn decks, porches, and doghouses with brilliant splashes of color ($23.95 for 12”). More than 50 types of veggie plants, including cucumbers ($1.49) and lettuce ($0.99 per seed packet), help salads freshen up, and just-picked rosemary transforms shy pork chops into barbecue celebrities ($2.89). Friendly staff members help shoppers navigate the 25,000-square-foot space, unearthing glazed Malaysian pottery ($19.95) and locating the perfect shovels for pint-size diggers' sandboxes. They’re also happy to provide advice on fertilizer use, pest prevention, and recovery of runaway garden gnomes.

The greenhouse also carries heirloom vegetables, unique aquatic plants, and hard-to-find flower varieties, helping green thumbs wow friends, neighbors, and local hummingbirds. In addition, customers can stock up on Frey’s private-label mulch and potting soil, welcoming the houseguests with fresh mud pies and crunchy woodchip crumbles.