I grew these this year. Low growing, good for front of borders. Leucanthemum 'Aglaia' Shasta Daisy: Full Sun, perennial, blooms all summer if deadheaded, divide every 2-3 years. So fluffy & pretty!
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