What's Blooming? Companions

"Structure is the most important component in a successful planting," wrote Piet Oudolf in his book, Designing With Plants. Indeed, Oudolf believes that by concentrating on the structure of each plant, one can create a garden that is interesting to look at through several seasons, not just during bloom time. This was one of the principles employed when he designed the plantings of the Lurie Garden - selecting plants for their shape and structure to make interesting combinations.

One such combination can be found in the Dark Plate where he used plumes and spires at the south stairs. In the foreground, is a stand of an ornamental grass, Calamagrostis 'Karl Foerster' (Feather Reed Grass) in bloom this month with pinkish bronze inflorescences. It will grow to six feet, creating a screen to highlight the spires of Digitalis ferruginea (Rusty Foxglove) blooming in front. This Digitalis has smaller blooms, doesn't require staking, and makes a nice companion to the reed grass screen. Above and behind these plants, creamy white plumes of Persicaria polymorpha (White Dragon Knotweed) add another dramatic screen, calling attention to the tips of the Feather Reed Grass.

In the fall, the Digitalis will turn a sienna brown; the Calamagrostis inflorescences will blow out to buff-colored plumes; and the plumes of the Persicaria will become a lighter version of the Digitalis.

Tours begin at 10 am today. Look for signs pointing out Liatris spicata 'Alba,' Monarda didyma 'Scorpian,' and Agastache 'Blue Fortune.'

Summer Solstice

Sunrise 5:16 am on the longest day of the year, but the sun will not reach the garden until well after six. When the light reaches the meadow, the leaves of Silphium laciniatum (Compass Plant) are backlit, emphasizing its deeply-cut leaves that look like large hands reaching toward the sky. In the foreground, a pink cloud of Geum triflorum (Prairie Smoke) catches the light as it filters through the trees that form a canopy over the Dark Plate (Robinia pseudoacacia 'Chicago Blues').

On today's garden tours, some of the highlighted plants include Monarda bradburyana (Eastern Bee Balm). This pale pink bee balm was planted last fall in the Light Plate. It makes a nice companion to the deep violet Allium purpurea (Ornamental Onion) that is interplanted with it. Look for both of these plants coming through a ground cover of a young ornamental grass, Sporobolis heterolepis 'Tara' (Prairie Dropseed).

In the Light Plate, growing near the Monarda and Ornamental onions, Stachys officinalis 'Hummelo' (Betony or Hedgenettle) is beginning to open. This plant was developed by plantsman Piet Oudolf at Hummelo, his garden and nursery in the Netherlands. Oudolf uses this plant in the Lurie Garden because of its deep violet orchid-like flowers that are compactly borne on flower spikes. It attracts all types of insects while in bloom and when dry, its silhouette gives interest to the winter garden.

Small garden signs will direct you to other plants in bloom that include: Echinacea purpurea 'Rubinglow' a deep pink coneflower that is just beginning to show; Phlomis tuberosa 'Amazone' (Phlomis) a tall plant with pink flowers clustered around the stem; Sanguisorba menziesii (Burnett) with red knot-like flowers and toothed leaves, growning near the stairs at the Seam.