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Midwest Regional Reports

Regional Picks: Showy Shrubs – Midwest

Fine Gardening – Issue 191

1. ‘Pusch’ Norway Spruce

‘Pusch’ Norway Spruce
Photo: millettephotomedia.com

Name: Picea abies ‘Pusch’

Zones: 3–7

Size: 2 feet tall and 3 feet wide

Conditions: Full sun, tolerates partial shade; average to moist, well-drained soil

Native range: Scandinavia

Each spring, this sweet little specimen pushes out bright red mini-cones on its branch tips. The cones hold that eye-popping color for weeks before aging to buff brown, and are retained until the next year for multiseason interest. The plant is roundish with somewhat stacked horizontal branches and short, olive green needles. It will reportedly develop a more upright silhouette after many years. It is hardy as the dickens in windswept or air-polluted urban sites and requires no pruning or maintenance.

 

2. Korean Azalea

Korean Azalea
Photo: Courtesy of Spring Meadow Nursery

Name: Rhododendron yeodoense var. poukhanense

Zones: 4–7

Size: 3 to 4 feet tall and 5 to 6 feet wide

Conditions: Partial shade; rich, moist, acidic soil

Native range: Korea and Japan

Who isn’t looking for a color splash in semi-shaded sites? This no-nonsense hardy azalea is an often overlooked broadleaf evergreen to fi ll that niche. In midspring it will yield a stunning crop of 2-inch funnel-shaped, fragrant flowers. The dark green leaves may turn orange-red with adequate fall sunlight, and a fair percentage will drop, so let’s call it semi-evergreen just to be accurate. The plant silhouette is a boxy rectangle. It has a medium growth rate, flowering well even when young. While it is lime tolerant, employing an acidifying agent is a wise idea.

 

3. ‘Formal Form’ Western Bristlecone Pine

Name: Pinus longaeva ‘Formal Form’

Zones: 4–8

Size: 8 to 10 feet tall and 5 to 6 feet wide

Conditions: Full sun; average to dry, well-drained soil

Native range: Southwestern United States

‘Formal Form’ has lustrous silvery blue foliage (with no white resin flecks) arranged with bottlebrush-like density. The silhouette is a narrow, perfectly symmetrical pyramid requiring no pruning. This deer-proof tree grows just 4 to 6 inches annually. Due to its Southwest origins, this beauty is heat and drought tolerant and requires really sharp drainage. It is an elegant specimen conifer that admittedly isn’t at every corner garden center but is well worth the search.

 

4. ‘Summer Snowflake’ Doublefile Viburnum

‘Summer Snowflake’ Doublefile Viburnum
Photo: Kerry Ann Moore

Name: Viburnum plicatum var. tomentosum ‘Summer Snowflake’

Zones: 5–7 (temperatures consistently below –15°F can be fatal)

Size: 8 to 10 feet tall and 6 to 8 feet wide

Conditions: Full sun to partial shade

Native range: China and Japan

‘Summer Snowflake’ is a flowering overachiever bearing white, flat-topped lacecap blooms. After a heavy spring outburst, it produces intermittent shows in summer and fall. I’ve had plants still blooming at Halloween in Chicago—now that’s a treat! The shrub itself is a little wider than it is tall, with handsome, matte green foliage held on horizontal branches. Its fall color carries orange, rust, and maroon possibilities, but the purported fruit has always been an unrealized promise in my garden. I would nominate this plant for specimenhood or use in small groups. It’s a flowering exhibitionist but not a maintenance prima donna.

 

Tony Fulmer is chief horticulture officer at Chalet, a specialty nursery in Wilmette, Illinois.

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