Why do certain plants look and grow better than others near foamflowers? There are many reasons.
Growing conditions — One of the first things to consider is growing conditions. Foamflowers prefer at least part shade. Many will do fine even into full shade. All of the foamflowers are woodland wildflowers so they need soil that is moist but well drained with lots of organic matter.
Leaf color — Try pairing them with leaves of similar colors, like the dark greens and burgundies of hardy begonias or red coral bells to help bring out their unique markings. Or contrast them with bight greens and silvers, such as Japanese painted ferns or pulmonarias, to highlight the entire plant.
Texture — Texture is important in any garden, but especially in a shade situation. Choose companion plants that have contrasting leaves. Maidenhair ferns or fringed bleeding heart are fine textured and pair well with foamflowers. Or try larger leaves, such as bloodroot or hosta, for a completely different look.
Flowers — Last, but not least, consider flowers. Spring-blooming perennials with soft pastel flowers, such as blue brunnera, pink bleeding heart or purple sweet violets, combine well with the pale-pink or white foamflowers. Try to keep all of these things in mind as you plan a garden with foamflowers. To help you out I’ve put together a list of 25 perennials that I think make good foamflower companions.