White Barn Wallflowers® Fragrance Bulb "Fresh Balsam" by Bath & Body Works. $6.99. Combine with Wallflowers fragrance plug, sold separately, to scent any room 24/7 with noticeable freshness for up to 8 weeks.. The easiest way to scent your home. Contains: 1 Home Fragrance Bulb (0.8 fl oz./24 mL total). Like evergreen woods on a clear fall morning, our refreshing blend of crisp eucalyptus, fir needles and cedarwood musk notes is an invigorating and timeless treasure.