People who work at a plant store, gardening center, or nursery shop are usually gardening enthusiasts themselves, if not professionals. They may be horticulturalists with training in plants and flowers. Some are landscapers and not only sell plants, shrubs, and flowers, but also plant flowers for customers. They may also provide spraying, fertilizing, and mulching services as well. And many sell the actual products, like organic pesticides and sprays, pots, accessories, and soil.
Because this business is seasonal, with the bulk of sales and services occurring in spring, summer, and early fall, professionals work hard all year to get things ready. Gardening centers, flower shops, plant stores, and greenhouses often employ workers with different specialties to plant, cultivate, water, fertilize, and otherwise care for perennials and annuals.
Pests are a big problem for retail nursery and plant store owners, so they may use sprays and other chemicals to keep them at bay. They can let the customer in on chemicals and all-natural organic sprays to buy for use at home. They can also assist customers on where and how to plant herbs and plants, whether in full sun, some shade, or a combination of the two. Customers can set up appointments for mulch deliveries, plant installation, landscaping, and the like.
Indoor plants will require different care than outdoor plants, so experts who work in plant stores should be able to advise on indoor care. One doesn't need a degree to work in this business, but they may have taken courses aimed at botanical care and horticulture. Even online classes exist to provide education in these areas.