Variegated Solomon's Seal is a hardy shade perennial that thrives in and out of the ground... it lasts a long time in water, & it tolerates dry soil once established, and sprouts dainty white dangling flowers in spring. ~Norfolk Botanical Garden
Sensory Gardens: "Use plants that play on the senses, such as fuzzy lamb's-ear, textural succulents, or fragrant lavender." (though not many eat it, lamb's ear leaves are edible, and most fleshy succulents are edible)
Money does grow on trees...and on bushes and vines and groundcovers, too. With edible landscaping, saving money never looked and tasted so good! http://www.bhg.com/gardening/vegetable/vegetables/edible-landscaping/?socsrc=bhgpin042415ediblelandscapin