Evaluating Perennials for Chicagoland Gardens
Perennials in Focus is a plant evaluation program that examines new and underused plants for Chicagoland, the third largest metropolitan area in the country. A group of horticultural experts trials and evaluates plants at numerous locations across the region. Results help consumers, public gardens, growers, landscape designers, breeders, and other industry professionals make informed plant choices.
Five perennials that bring goldfinches to Chicagoland gardens
American goldfinches add bright color and lively movement to a perennial border, especially from late summer through winter. Their visits are closely tied to seed availability, so a garden designed for them should offer mature seedheads rather than relying only on nectar-rich flowers.
The most useful plants combine accessible seeds, sturdy stems, and a long season of interest. Several members of the aster family are especially valuable because their flower heads mature into seed sources that goldfinches can harvest with their short, conical bills.
Regional performance matters in Chicagoland. A perennial that thrives in one climate may struggle with heavy clay, humid summers, winter moisture, or inconsistent snow cover. The following selections suit a range of local garden conditions and support birds while also contributing strong ornamental value.
What goldfinches need from perennial plants
Goldfinches commonly feed on small seeds from coneflowers, black-eyed Susans, sunflowers, coreopsis, blazing stars, and related plants. They often arrive after peak bloom, when other gardeners might be tempted to cut everything down. Leaving seedheads standing through fall and winter gives birds a dependable food source.
Plant structure also affects how useful a perennial becomes. Upright stems keep seedheads visible above snow, while branching forms create several feeding perches. Dense plantings provide cover nearby, but an open area around the seedheads makes it easier for goldfinches to land and feed.
Purple coneflower
Purple coneflower, or Echinacea purpurea, is one of the most reliable choices for a sunny Chicagoland garden. Its pink-purple rays surround a raised central cone, and the plant generally reaches 2 to 4 feet tall. Flowering begins in early or midsummer and can continue for weeks if spent blooms are not removed too aggressively.
Goldfinches often visit the dried cones from late summer into fall. The plant also supports native bees and butterflies during bloom, giving the border value before the seedheads mature. Select sturdy cultivars suited to full sun, and place them in well-drained soil; winter-wet locations can cause crown problems.
The seedheads remain attractive after the petals fade, making purple coneflower a practical bridge between a summer flower garden and a winter wildlife planting. Cut the stems in late winter instead of autumn if the site remains tidy enough for that approach.
Black-eyed Susan
Black-eyed Susan, especially Rudbeckia hirta, produces cheerful yellow flowers with dark centers on plants roughly 2 to 3 feet tall. It blooms over a long period, often from early summer into fall, and its abundant seed production makes it a useful finch plant even when individual plants are relatively short-lived.
This species can behave as a biennial or short-lived perennial, but it frequently renews itself from seed in suitable conditions. Avoid covering every open patch with mulch if natural reseeding is welcome. Goldfinches may pick at the mature brown centers while perched on the remaining stems.
Black-eyed Susan performs best in full sun and average, well-drained soil. It tolerates dry periods once established, though plants can flop if they receive excessive fertilizer or grow in rich, overly moist ground.
| Perennial | Approximate height | Main bloom period | Goldfinch value | Best garden setting |
|---|---|---|---|---|
| Purple coneflower | 2–4 feet | June–August | Persistent cone seeds | Sunny, well-drained border |
| Black-eyed Susan | 2–3 feet | June–September | Abundant small seeds | Dry to average soil |
| Cup plant | 4–8 feet | July–September | Tall seedheads and perches | Moist prairie-style planting |
| False sunflower | 3–5 feet | July–September | Seedheads and sturdy stems | Full-sun mixed border |
| Blazing star | 2–4 feet | July–September | Fine seeds in upright spikes | Sunny, well-drained soil |
Cup plant
Cup plant, Silphium perfoliatum, is a dramatic native perennial for larger properties, rain gardens, and prairie-inspired landscapes. It can reach 4 to 8 feet, with broad leaves that clasp the stems and form small “cups” capable of holding rainwater. Yellow flowers appear in summer, followed by seedheads that remain useful well into the cold season.
Its height gives goldfinches elevated feeding stations, while the upright stems add winter architecture. Cup plant prefers consistent moisture but can adapt to average soils once established. Because it becomes substantial, give it generous spacing and place it toward the back of a border or along a property edge.
This is a strong choice for gardeners who want wildlife value without sacrificing scale. It can spread by seed in favorable conditions, so remove some seedheads before maturity if a more controlled planting is needed.
False sunflower
False sunflower, Heliopsis helianthoides, resembles a long-blooming sunflower but generally offers a more manageable perennial habit. Its yellow daisylike flowers appear from midsummer into early fall, and mature plants commonly stand 3 to 5 feet tall. The stems are firm enough to support seedheads after frost.
Goldfinches benefit when the spent flowers remain in place. The plant’s many branches create several landing points, and the dry heads provide seeds after other summer food sources have declined. For a sturdier display, grow it in full sun and avoid highly fertile soil that encourages weak, floppy growth.
False sunflower also helps fill the seasonal gap between early summer bloomers and autumn asters. Gardeners seeking alternatives to disease-prone tall phlox can compare it with stronger Chicago perennials that offer reliable structure and late-season interest.
Blazing star
Blazing star, particularly Liatris spicata, contributes a different form to a finch-friendly planting. Its vertical wands of purple flowers rise 2 to 4 feet above narrow, grasslike foliage, usually blooming in midsummer. After flowering, the seed clusters retain their shape and can attract small birds.
The species prefers full sun and soil that drains well, making it especially suitable for rain-free prairie borders, pollinator gardens, and sunny foundation beds. It does appreciate moisture during establishment, but persistent winter saturation can damage the corms.
Plant blazing star in groups for stronger visual impact and better habitat value. Its narrow profile allows it to fit among coneflowers and black-eyed Susans without overwhelming them, while the dried flower spikes contribute texture through snow and frost.
Keep seedheads standing and plants healthy
A goldfinch garden depends as much on maintenance timing as on plant selection. Let flowers ripen fully, and resist cutting every perennial back in October. Clean up diseased foliage separately, but leave healthy seed-bearing stems until late winter whenever possible.
Overcrowded plants may produce fewer flowers and weaker stems. When a clump becomes congested, use safe perennial division to restore vigor and create additional planting groups. Divide during the season recommended for the specific species, and water new divisions consistently while roots reestablish.
- Group three or more compatible perennials so birds find a concentrated food source.
- Grow seed-producing plants in full sun unless a species specifically prefers partial shade.
- Avoid insecticides on open flowers and use mulch without burying crowns.
- Leave healthy seedheads until late winter, then cut stems before new growth begins.
- Add shrubs or dense native grasses nearby for shelter without blocking access to the seedheads.
A successful planting can combine purple coneflower and black-eyed Susan in the middle layer, blazing star for vertical rhythm, and false sunflower or cup plant for height. Track bloom timing, winter survival, spread, and bird activity from year to year. Explore region-specific perennial evaluations from Perennials in Focus, then choose a few of these dependable seed plants to create a garden that feeds goldfinches across the seasons.
In the Garden
Evaluator gardens are located across the Chicagoland area, representing a range of growing conditions. Visit our retail and wholesale partners to find trialled perennials for your own garden.
Retail & Wholesale: Hinsdale Nurseries (Willowbrook, IL), Mariani Nurseries (Kenosha, WI & Garden Prairie, IL), Northwind Perennials (Burlington, WI), The Growing Place (Aurora, IL).
Wholesale Only: Hinsdale Nurseries (Plano, IL), Intrinsic Perennial Gardens (Hebron, IL).
Our Evaluation Program
The 2017–2020 evaluation cycle included Agastache 'Blue Boa', Allium senescens 'Blue Eddy', Amsonia ciliata var. filifolia 'Georgia Pancake', Astilbe 'Chocolate Shogun', Boltonia astroides 'James Crocket', Brunnera 'Alexander's Great', and Geranium cinereum 'Jolly Jewel Purple'. Completed evaluations include Amsonia 'Blue Ice' (2004–07).
On April 10, 2020, the program published snapshot profiles for Vernonia lettermanii 'Iron Butterfly', Stokesia laevis 'Elf', Stachys officinalis 'Pink Cotton Candy', Lobelia 'Monet Moment', Helleborus 'Winter Thrillers', Geum 'Mai Tai', Geranium soboliferum 'Butterfly Kisses', Gentiana x intermedia 'True Blue', Eurybia divaricata, Asparagus 'Purple Passion', and Agastache 'Bolero'.
Browse the full collection of snapshots organized alphabetically — from A–D, E–H, I–Q, and R–Z — to find detailed performance data on perennials trialled across Chicagoland.