Without plants, there would be no oxygen and nothing to prevent bunnies from discovering that humans taste delicious. Fend off bouncing Bunniculas with today's Groupon: for $20, you get $40 worth of quart and gallon sized pots of perennials at Romence Gardens.

Each species of plant begins its leafy life under the watchful eye of Romence's gifted gardeners, who traverse 6 acres of greenhouse space to tend to the tender blossoms. Once fully grown, the nursery's hardy, winter-resistant perennials last for years, braving snows, heat waves, and deer teeth. Romence's budding beauties are available in several sizes, colors, and growing conditions, from the Heartleaf Bergenia ($12.95 for 1 gal. pot) to the sun-worshipping columbines ($5.49 for 1 gal. pot).

Serenity-seekers can take a whiff of the therapeutic English lavender ($9.95 for 1 gal.) or impress houseguests and visiting tax collectors with the exotic Stargazer lilies ($12.95). Romence's nursery nannies constantly supplement their flock of chlorophylled cuties with such adorable additions as the Black-Eyed Susan ($9.95 for 1 gal. pot) and the fluffy maiden-hair fern ($9.95 for 1 gal.).