Snapshots A–D

Perennial Snapshots summarize three years of evaluation data for plants trialled across Chicagoland. Each profile captures bloom period, height, spread, flower color, and other observations recorded by our evaluation team. Browse the A–D group below.

The A through D snapshot group opens a window into the first portion of our trialing alphabet, giving Chicagoland gardeners a chance to see how a range of perennials perform under real Midwestern conditions. Each entry in this group distills three years of careful observation into a concise profile, covering bloom timing, mature height and spread, flower color, and the subtle performance notes that only repeated seasonal monitoring can reveal. For gardeners evaluating underused plants, this collection offers a practical starting point for making informed choices that will thrive in the region's climate.

What makes this snapshot group particularly valuable is the consistency of the evaluation protocol behind it. Every plant profiled here was observed across multiple garden locations in the Chicagoland metropolitan area, giving our horticultural experts a robust picture of how each perennial behaves across varied microclimates, soil conditions, and exposure levels. The resulting data helps consumers, growers, and landscape designers alike understand not just how a plant looks in a catalog photo, but how it genuinely performs season after season in a real garden setting.

The A through D grouping also highlights the breadth of plant material being evaluated by our program. From well-known garden staples to lesser-known candidates deserving wider attention, this alphabetically organized section makes it easy to navigate the growing library of snapshots. Each profile is designed to be digestible at a glance, yet detailed enough to support serious planting decisions. Whether you are a home gardener seeking reliable performers or an industry professional comparing cultivars, these summaries serve as a trustworthy reference built on methodical field work.

As you browse this section, keep in mind that the snapshots represent a snapshot of conditions during a specific trialing window. Weather variations, pest pressure, and other environmental factors can influence results from year to year, which is precisely why our team emphasizes multi-year data collection. The A through D profiles lay the groundwork for a broader conversation about plant performance in Chicagoland, and we encourage visitors to explore the remaining letter groups to build a fuller picture of the perennials we have studied and the successes we have documented across the region.

Tall spikes of deep violet-blue flowers rising above aromatic green foliage in a sunny garden bed

Agastache 'Blue Boa'

Part of the 2017–2020 evaluation cycle. Noted for its vivid violet-blue flower spikes and long bloom period.

Compact mound of green leaves topped with dense clusters of small lavender-pink flowers

Agastache 'Bolero'

Snapshot published April 10, 2020. A compact hyssop with rose-lavender blooms evaluated for garden performance.

Low mound of slender green foliage with pale lavender-blue star-shaped flowers in spring

Amsonia 'Blue Ice'

Completed evaluation (2004–07). A compact bluestar with lavender-blue spring flowers and attractive golden fall color.

Narrow thread-like green leaves forming a low spreading mat, dotted with small pale blue flowers

Amsonia ciliata var. filifolia 'Georgia Pancake'

Part of the 2017–2020 evaluation cycle. A groundcover bluestar with fine-textured foliage.

Upright green stems with feathery foliage and small white flowers, edible spears emerging from soil

Asparagus 'Purple Passion'

Snapshot published April 10, 2020. An ornamental and edible asparagus with purple spears and airy summer foliage.

Dark chocolate-brown fern fronds with a silvery sheen, emerging among green companion plants

Athyrium 'Ghost'

An upright ghost fern with silvery-grey fronds and dark midribs, evaluated for shade performance in Chicagoland gardens.

Plumes of soft pink flowers rising above dark green divided leaves in a shaded garden setting

Astilbe 'Chocolate Shogun'

Part of the 2017–2020 evaluation cycle. Noted for its rich chocolate-brown foliage and pink bloom plumes.

Large heart-shaped green leaves with silvery-white veining, small blue forget-me-not flowers in spring

Brunnera macrophylla 'Jack Frost'

A shade perennial with striking silver-veined leaves and airy blue spring flowers, widely evaluated in the program.

Broad heart-shaped leaves with heavy silver overlay, tiny blue flowers on wiry stems above the foliage

Brunnera 'Alexander's Great'

Part of the 2017–2020 evaluation cycle. A large-leaved Siberian bugloss with substantial silver foliage.

White daisy-like flowers with yellow centers on tall stems above narrow green leaves

Boltonia astroides 'James Crocket'

Part of the 2017–2020 evaluation cycle. A tall late-season perennial with clouds of white daisies.

Bell-shaped purple-blue flowers nodding on slender stems above a mound of green basal leaves

Campanula cultivars

Several bellflower selections have been evaluated, with snapshots covering habit, bloom time, and hardiness in the region.