Although they produce attractive spikes of purple or white flowers in midsummer, hostas are grown primarily for their attractive foliage, and plant breeders have created varieties in a remarkable range of sizes and colors.
Experienced gardeners know the value of foliage plants. Many types of perennial flowers are at peak bloom for just a few weeks. Plants with attractive foliage such as hosta fill in the gaps and help create season-long interest. This is especially true in shade gardens, since many shade-loving plants have more subtle blooms or have a shorter bloom time than many familiar sun-loving plants.
Understanding Light Levels: Full sun is commonly defined as direct sunlight for at least 6 hours during the middle part of the day. If your garden gets direct sunshine from sunrise until noon, or from 3 p.m. on, even if that equals six hours in mid-summer, consider the site part shade. Morning and evening sunlight isn’t as strong as mid-day sunlight. The same goes for sites that receive filtered or dappled sunlight all day. For areas that fit these descriptions, choose plants designate for part shade.
If your garden is located on the north side of your house or shaded by a dense tree canopy, you’ll need to choose plants adapted to full shade.
Designing a Shade Garden: Hostas fit the bill in both situations: they adapt well to both part and full shade. Following is a chart with some good companion plants for hosta. This is just a small selection, so don’t limit yourself to just these few.
|Plant Type||USDA Zone||Part Shade||Full Shade||Varieties|
|astillbe||4 to 8||•||•||Fanal, Ostrich Plume, Sprite|
|baptisia||3 or 4 to 8||•||Purple Smoke, Carolina Moonlight|
|bellflower||4 or 5 to 9||•||Bowl of Cherries, Kent Belle, Pink Chimes|
|bleeding heart||varies by variety||•||•||Alba, Golden Heart|
|dianthus||4 to 8||•||Bath Pink, Firewitch|
|geranium||4 or 5 to 8||•||Midnight Reiter, New Hampshire|
|heuchera||4 to 9||•||Purple Palace|
|lysimachia||4 to 8||•||Creeping Jenny|
|pulmonaria (lungwort)||4 to 9||•||•||Baby Blue, Emerald Isles, High Contrast|
|tiarella||4 to 9||•||•||Iron Butterfly, Black Snow Flake, Jeepers Creepers|
|tradescantia||4 to 9||•||•||Sweet Kate|
Ground Covers: There are several plants that make excellent groundcovers, including lady’s mantle, lamium, lily-of-the-valley, pachysandra, and vinca. Since it can be challenging to establish a lawn in shady areas, consider replacing lawn grasses with shade-tolerant ground covers under trees or on the north side of your house—wherever it’s shady. Hostas may be planted among the ground cover plants, or can be used on their own to cover large expanses. Cheescake is an especially good hosta variety for using as a groundcover—it spreads quickly, and grows to a height of just 8 inches.
Credit: National Gardening Association