Green Glass Tree Jar. Featuring a tree top lid for a complete look, these  Christmas tree candle jars  create a room filling scent .  Scent Spruce Tree, his fragrance has a bright, punchy character that truly captures the spirit of the holiday season.infused with natural essential oil including cedar oil, clove leaf oil, fir needle oil, western red cedar oil, spearmint leaf oil, and eucalyptus leaf oil.