Dietitians are the only qualified health professionals that assess, diagnose and treat dietary and nutritional problems at an individual and wider public-health level. They work with both healthy and sick people.
I have 3 different types of coneflowers: purple, yellow (Goldsturm), and orange (Sunset?). The purple I put in 2 years ago, and just isn't growing. It is still less than 5-6 tall with only 2 leaves, and surprisingly bloomed one pathetic flower. It still looks like the day I brought it home from the nursery.
When in bloom, the sunchoke (Helianthus tuberosus) looks much like a miniature sunflower. It is related to the aster and usually has bright yellow flowers. To harvest the edible tuber, however, gardeners must dig up the bulbous root in spring, before the plant has blossomed.