Hostas Are Problem Solvers for Shade
Hosta is a perennial foliage plant so well-known and widely planted that many gardeners take it for granted. There are over 3000 named varieties, all of them easy to grow and very trouble-free. They are known for growing well in shady spots where most flowers struggle, just one of the many reasons they deserve a place in your garden.
Also known as “plantain lilies”, Hostas can be used to create dramatic effects in problem areas. They are very comfortable under trees, where they can be used like a tropical ground cover since they don’t mind competition from tree roots. They will thrive in complete shade, so they are a perfect way to fill narrow beds between walks and walls on the north side of buildings. Once established they are very drought-tolerant and carefree.
Hostas are named after Nicklaus Host, the first director of the botanical garden at the Belvedere Palace in Vienna, Austria. Built in the early 1700’s, Belvedere is an elaborate complex with a museum and formal gardens in the style of the famous Versailles mansion in France.
Botanically, Hostas are in the Lily family, but they are also related to asparagus. They send up tall shoots with blooms, similar to asparagus stalks. Most Hosta blooms are lavender in color, but some are white. There are several fragrant Hosta varieties, but most Hosta blooms are not fragrant.
Hosta plants vary in size. We have some huge Hostas in our gardens, but there are also some adorable tiny ones like “Mouse Ears” and “Stiletto”. Large-leaved Hostas like “Blue Angel”, “Big Daddy” and “Sum & Substance” can get four feet across, and clumps will gradually spread and form new plants. It is easy to divide Hosta clumps.
Planting Hostas is easy. They aren’t picky about soil, but we like to mix some Plant Tone into the soil when we plant them so their roots will get established quickly. Hosta roots are fairly shallow so you don’t need to dig much. It’s important to plant them where they get protection from the hot afternoon sun; if they get sunburn the edges of the leaves will turn brown and crinkle up.
Deer and slugs are the main enemies of Hosta plants. The best deer repellent we’ve tried is “Liquid Fence”, a noxious-smelling spray that lasts for a month or more. Liquid Fence is widely available in a ready-to-use spray bottle, at garden centers and hardware stores. The best thing we’ve found for controlling slugs is “Sluggo Snail and Slug Control” by Monterey, an organic remedy that’s safe around edibles like strawberries (another slug favorite). Sluggo is available online or at home improvement stores, and at garden centers. We often use variegated Hostas as perennial borders around landscape beds. Varieties with bright white or yellow in the leaves, like “Patriot”, “Loyalist” and “Fire & Ice”, make a stunning accent along the edges of beds. Bright green Hostas like “Sum & Substance” and “Guacamole” really brighten up shade gardens. Blue Hostas like “Krossa Regal” and “Blue Ice” are big favorites. To see hundreds of varieties in one place, all clearly labeled, visit the Chadwick Arboretum at Ohio State University.