Showcase Native Rudbeckia Coneflowers in the Home Garden
Rudbeckia, "a noble plant and pride of gardens…" as the famous biologist Carl Linnaeus noted in the mid-1700s. Even today, the black-eyed Susan coneflower (Rudbeckia hirta) is a garden hallmark due to its claim-to-fame showy flowers, moderate habit, and ease of care. The term "coneflower" is based on a flower's central raised cone of disk florets and an outer halo of ray petals.Â
Rudbeckia plants are native to North America. Attractive to bees, wasps, flies, butterflies, skippers, and moths. Some are larval host plants. Birds swoop in to eat seeds on mature flower heads.
Look to showcase even more interesting Rudbeckia coneflowers in your home garden, Table 1. Native Rudbeckia Coneflowers for the Home Garden provides additional Rudbeckia species to consider, including key ornamental features and growing considerations. The plants are ordered by mature height. Usually available from plant nurseries.
These Rudbeckia coneflowers show appealing yellow petal colors and cone shapes. Like black-eyed Susan, all have extraordinary floral displays extending from summer to early fall. Foliage shows many unique, eye-catching textures, ranging from dark green, coarsely rough, or deeply lobed to blue-green, paddle-shaped. Their habits offer differing planting options: traditional borders, patios, stand-alone features, and/or accent plantings intermingled within a meadow.
Want a flower that is big and bold? Cutleaf or greenhead coneflower (R. laciniata) and giant coneflower (R. maxima) are among the largest Rudbeckia species, offering a variety of ornamental features for a large garden site, singly or within a meadow.
Cutleaf coneflower (R. laciniata) is held atop slender, tall stalks, giving attention to its flower of a green-yellow dome-shaped cone and reflexed golden rays. Its foliage is attractively long, deeply lobed, and toothed. While its slender stalks tend to splay, this lanky appearance gives it a naturalistic look, especially in a meadow garden.

Giant coneflower (R. maxima) is an ornamental drama. Often, the earliest Rudbeckia to flower. Starting with a basal clump of large paddle-shaped bluish-green leaves. Then, rising up are sturdy stalks topped by single flowers - a long central cone and dangling intense yellow rays. Later on, it is so enjoyable to watch goldfinches swoop in to eat their mature seeds.

Looking for a shining burst of yellow color in mid-late summer? Sweet coneflower (R. subtomentosa) shows the brightest yellow petals, even brighter and larger than black-eyed Susan's. Stellar in the garden front border, around a patio, or even as an intermingled accent among a naturalistic meadow.

Love a standout in the garden? Tap into the beauty of brown-eyed Susan (R. triloba). A great profusion of showy yellow flowers, plus its extensive branching and erect maroon stems, create an attractive, dense, bushy presentation - space permitting, suited to fill in a front border or frame a long walkway.

| Rudbeckia spp. (common name) | Flower | Foliage, Form, and Height | Growing Conditions |
|---|---|---|---|
|
Rudbeckia laciniata (cutleaf or greenhead coneflower) |
Golden yellow drooping rays; light green dome-like cone, matures to a yellow pincushion shape; clusters on stalk apex; 2-3 inches |
Foliage: deeply lobed, dissected, light green leaves; long, 2 inches) lower-middle leaves. Form: splaying with slender stalks. Height: 5 or more feet |
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|
Rudbeckia maxima (giant or large coneflower)Â |
Intense yellow drooping ray petals; tall, 2-6 inches, dark brown beefy central cone; apical on a stalk; 3 inches; early season bloom |
Foliage: a basal clump of large, waxy, paddle-shaped, bluish-green leaves; 8-24 inches long, 10 inches wide; sparse on the stalk. Form: stately, sturdy stalks; wide habit. Height: 5 or more feet |
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|
Rudbeckia subtomentosa (sweet or fragrant coneflower) |
Numerous, narrow, bright yellow ray petals, dark brownish-purple cone; 2.5-3 inches Mild anise fragrance when crushed |
Foliage: medium-deep green leaves; lower-middle leaves, deeply lobed. Form: sturdy, upright; taller than black-eyed Susan. Height: 3-5 feet |
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|
Rudbeckia triloba (brown-eyed Susan) |
Golden yellow rays and deep brown-purple flat cone; 1.5-2 inches  Smaller flowers than black-eyed Susan, but blooms are more profuse |
Foliage: dark green; leaves are 3-lobed, usually basal (less often, 5- or 7-lobed). Form: coarse, densely branched, bushy at maturity; dark red/maroon, erect stems. Height: 3-5 feet |
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