Shoulder Shrug Muscles. The shoulder shrug is a simple exercise to perform, and as the name suggests, it does work your shoulder muscles -- namely, the trapezius, or upper shoulder. Additionally, the shoulder shrug works muscles of your back -- the levator scapulae and erector spinae.
Oxalis makes a perennial ground cover in shady areas. Oxalis (Oxalis spp.), also called sorrel or shamrock, has a negative image if all you know of them are weedy, invasive cosmopolitan species. However, most of the about 800 species of oxalis are native plants in tropical South America and Africa or in temperate areas of the Old and New World. Many are used for landscaping or as houseplants. Oxalis are perennial plants but can give the appearance of annuals by going dormant in winter or during droughts.
Heuchera â Perennial also known As Coral Bells. Heuchera is a Native American plant that is found all over the country. It is more commonly known as Coral Bells and comes in many shades of purple, rose, green and variegated varieties. Heuchera is popular because it is easy to grow, adaptable and looks great. It is also hardy to zone 4 and considered to be somewhat deer resistant. One of the things that I love about them is that they grow beautifully in a shade garden on the north side of my house that gets very little sun.