In recent years, experts have discovered more far-reaching effects of vitamin D deficiency. In 2009, researchers from the University of Missouri-Columbia found that insufficient levels of vitamin D are associated with inflammation, an immune system response that can cause fluid buildup and swelling.
1 of 19 Facebook Pinterest. Feeding birds comes naturally when you grow trees and shrubs with nutritious berries. The plants you'll find in this slideshow do double duty: They attract birds and create a beautiful display with their flowers, fall colors, and fruits adding sparkle to your landscape. 2 of 19 Facebook Pinterest.
This 6-10 foot tall deciduous shrub is hardy in USDA Planting Zones 5-8 In early spring it produces pendulous clusters of red or pink flowers that attract and feed hummingbirds, bees and butterflies. The small bluish-black berries are eaten by a wide variety of wild birds.