Without trees to generate oxygen, humans would have to retrieve it from scuba tanks and the minty breath of local supermen. Keep the air alive with today’s Groupon to Sugarloaf Landscape Nursery in Edwardsville. Choose between the following options:

• For $49, you get $100 worth of balled and burlap Christmas trees, live trees, or shrubs.
• For $99, you get $200 worth of balled and burlap Christmas trees, live trees, or shrubs.
  
  

Sugarloaf Landscape Nursery nurtures more than 150,000 plants from a diverse range of genus and species within the sunny confines of multiple greenhouses and 40 acres of verdant terrain. More than 90% of Sugarloaf’s trees and shrubs are home-grown, including seven-foot balled and burlapped white pines ($130), ideal for standing guard over thoughtful presents on Christmas or Lumberjack Appreciation Day. Since the dedicated tree-tenders ball and burlap each Christmas pine with the root system intact, customers can choose to remove their tree’s foundation for temporary use or replant their coniferous friend so it can establish a permanent residence and register to vote.

Verdant shrubs of viburnum ($30 for 5 gal.) and boxwood ($30 for 3 gal.) add character and color to garden paths, and five-gallon weigela shrubs ($30) douse themselves in bell-shaped flowers and intoxicating perfume by early summer. Bountiful species of trees, such as maples, spruces, crabapples, and whitespire birches, stand stalwart in cozy backyard groves.