{"id":488,"date":"2014-08-21T15:39:02","date_gmt":"2014-08-21T20:39:02","guid":{"rendered":"https:\/\/theiowagardener.com\/wordpress\/?page_id=488"},"modified":"2025-03-05T13:11:23","modified_gmt":"2025-03-05T19:11:23","slug":"20-must-have-perennials-for-iowa-2","status":"publish","type":"page","link":"https:\/\/theiowagardener.com\/wordpress\/20-must-have-perennials-for-iowa-2\/","title":{"rendered":"20 Must-Have Perennials For Iowa"},"content":{"rendered":"\n

If I could have just 20 perennial flowers in my garden for both sun and shade, these are the ones I’d choose.<\/h4>\n\n\n\n
\"\"<\/a>
Deceptively fragile-looking peonies are among the toughest of garden plants.<\/figcaption><\/figure>\n\n\n\n

By Veronica Lorson Fowler <\/em><\/p>\n\n\n\n

Just as with choosing your favorite children, choosing your favorite flowers is difficult.<\/p>\n\n\n\n

But I bit the bullet and did it. I chose these particular flowers because for the most part, they’re incredibly easy to grow in Iowa–they’re super cold-hardy and they’ll survive on just our natural rainfall. (However, some, to look good and bloom their best, need watering in late July through September. Still, if you don\u2019t do that, they’ll just look sad but probably not die.) <\/p>\n\n\n\n

I chose a variety of flowers, including the gorgeous peony shown above, that will bloom from early April through the end of October so that you can have something blooming in your garden all growing season long. A bonus: Most are fairly good cut flowers to bring indoors and put in a vase.<\/p>\n\n\n\n

These perennials, unless otherwise noted, are conveniently medium-sized, growing a foot or two high and\/or a foot or two across. And, as with most perennials, they like rich, well-drained soil with plenty of compost worked in. (Can’t have too much compost!) Mulch them with about two inches of bark mulch or another type of mulch that eventually breaks down to help suppress weeds and conserve moisture.<\/p>\n\n\n\n

Click here<\/a> for a printer-friendly Acrobat.pdf version listing all twenty. <\/p>\n\n\n\n

<\/p>\n\n\n\n

10 Perennials for Sun<\/h5>\n\n\n\n
\n
\"Phlox\"<\/figure>\n\n\n\n

Creeping phlox <\/strong>
Great on slopes and in rock gardens, Phlox subulata<\/em> makes a nice, loose groundcover. Excellent interplanted with tulips. Blooms in early May in Iowa. Shear after blooming if needed to keep plants compact and full.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"Iris<\/figure>\n\n\n\n

Siberian iris<\/strong>
Unlike Grandma\u2019s German bearded iris, Iris siberica<\/em> almost never suffers from pests and diseases. The foliage looks great all season long with beautiful delicate flowers in late May to early June. Plant in drifts.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"PeonyDoTellpink\"<\/figure>\n\n\n\n

Peony<\/strong>
What would a June garden be without Paeonia<\/em>, an old-fashioned favorite? Excellent to get from friends, but also invest in some of the gorgeous new types, especially the crinkled single types. Stunning!<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"Flower-bed<\/figure>\n\n\n\n

Purple coneflower<\/strong>
Echinacea purpurea <\/em>is an Iowa prairie native that survives any weather and spreads nicely. Bees and butterflies love it. Leave flowers to dry on the plant to go to seed and attract goldfinches. Interesting in the snow, too.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"HemFairytale-9951\"<\/figure>\n\n\n\n

Daylily
<\/strong>Hemerocallis<\/em> is a July bloomer. Each flower blooms just one day, but the plant produces so many it seems to bloom a long time. Deadhead regularly. ‘Stella de Oro,’ a miniature, is one of the longest bloomers.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"SedumAutumnFireStonecroppink_CC_web\"<\/figure>\n\n\n\n

Joe-pye weed<\/strong>
Give this big guy room to sprawl\u2014about a 4\u2019 by 4\u2019 area\u2014and he\u2019ll steal the show in August and September. Eupatorium purpureum<\/em> hits up to 6 foot and the \u201cchocolate\u201d type is striking with dark maroon stems and deep rose flowers.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"Brown<\/figure>\n\n\n\n

Black-eyed Susan \u2018Goldsturm\u2019<\/strong>
In late August and September, when everything else is tired-looking, Rudbeckia fulgida<\/em> \u2018Goldsturm\u2019 bursts into bloom and looks delightfully fresh. A good spreader; great to get from friends and family.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"EupatoriummacGatewayJoePyeWeedred_web\"<\/figure>\n\n\n\n

Tall sedums<\/strong>
While \u2018Autumn Joy\u2019 is the most common, try other less tall sedums, such as \u2018Brilliant\u2019. It flops less. Divide \u2018Autumn Joy\u2019 every two years to prevent flopping. Plant in drifts of three or more for best impact. Blooms in September.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"AsterWoodsBlue-9951\"<\/figure>\n\n\n\n

Asters<\/strong>
Fancy cousins of the native prairie flower, garden asters are September bloomers. Avoid types not hardy to Zone 4 and colder. Consider spraying with a fungicide (organic types available) in April to prevent mildew problems in summer.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"daffodils\"<\/figure>\n\n\n\n

Daffodils<\/strong>
Technically a bulb but such welcome, brilliant color in April that they\u2019re indispensable. Plant Narcissus<\/em> (the botanical name for all types of daffoiils) in large drifts of 10 or more for best effect. Plant early-, mid-, and late-season types for weeks of bloom. Let foliage fade on plant.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

10 Perennials for Shade<\/h5>\n\n\n\n
\n
\"DicentraZestfulFernleafBleedingHeartpink_web\"<\/a><\/figure>\n\n\n\n

Everblooming-bleeding heart<\/strong>
Unlike its more common cousin, Dicentra eximia <\/em>has ferny foliage that looks good all season long and little pink flowers that are produced all season long. An amazing plant! First heavy flush of blooms in April.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"hyacinths\"<\/figure>\n\n\n\n

Virginia bluebells<\/strong>
Mertensia virginica<\/em> blooms in late April. Spreads rapidly, especially in more moist conditions. Great in rough grass or among trees. Excellent to get as divisions from a friend. Creates a gorgeous blue mist of bloom.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"AquilegiaMusicBlue&WhiteColumbine_web\"<\/figure>\n\n\n\n

Columbine<\/strong>
The intricate flowers of Aquilegia<\/em> x hybrida<\/em> often remind me of elaborate hanging lanterns. The common type can be dug and shared, but do try the stunning special cultivars in blues, pinks, and yellows. Blooms in May.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"HeucheraReginaCoralBellsltpink_web\"<\/figure>\n\n\n\n

Coral bells<\/strong>
Heuchera<\/em> foliage is so nice you could grow it for that alone. Often green, it now also comes in fantastical colors and markings. Almost as a bonus, it produces sprays of flowers in pink and white in June. Doesn\u2019t like too much shade.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"muguet\"<\/figure>\n\n\n\n

Lily-of-the-valley<\/strong>
A stand of Convallaria majalis <\/em>makes passerby stop to appreciate its sweet fragrance in May or June. Spreads rapidly to the point of being invasive. Plant it where it\u2019s contained by sidewalks, driveways, or other major barriers. <\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"FanalAstilbe-9951\"<\/figure>\n\n\n\n

Astilbe<\/strong>
This moisture-lover will be sparse with small blooms if not given ample extra waterings and good, rich soil. Gorgeous plumes of flowers in July and sometimes August. Size depends on the type of cultivar.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"LamiumWhiteNancywhite_web\"<\/figure>\n\n\n\n

Lamium<\/strong>
A showy groundcover, it spreads readily with ideal conditions and ample, but not too much, moisture. Look for interesting cultivars. Pink or white flowers in June or July.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"AruncusdioicusGoatsbeardwhite_web\"<\/figure>\n\n\n\n

Goats-beard<\/strong>
Often mistaken for astilbe, this woodland native plant is taller (4 to 6 feet) and less needy about water. Beautiful creamy white plumes. Blooms in June and July.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"LigulariastenocephalaTheRocketyellow_web\"<\/figure>\n\n\n\n

Ligularia \u2018The Rocket\u2019<\/strong>
Hits 3 to 4 feet tall. In all but the wettest years, it needs lots of water in late summer, and direct afternoon sun will make it wilt. The show-stopping spires in June or July make it worth it. Appreciates dark, rich soil.<\/p>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

\n
\"HostaSagae-9951\"<\/a><\/figure>\n\n\n\n

Hosta<\/strong>
Try a variety of hostas. Some are minis just a few inches tall and across while others are huge, like the giant yellow-green \u2018Sum and Substance\u2019 spreads up to 4 feet across. Try blue crinkled types and those with creamy, subtle variations in greens, creams, and yellows. Hosta plantiginea<\/em> is outrageously fragrant.<\/p>\n<\/div>\n\n\n\n

Other Links Of Interest:<\/strong><\/em><\/p>\n\n\n\n

Buck Roses<\/a><\/p>\n\n\n\n

8 Bulletproof Roses For Iowa<\/span> <\/a><\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

Photographs courtesy of Bailey Nurseries except daffodils \u00a9 Elina Elisseeva\/fotolia, creeping phlox \u00a9 Canoner\/fotolia, lily-of-the-valley \u00a9 jfgrave\/fotolia, and bluebells \u00a9 Anyka\/fotolia.<\/em><\/p>\n\n\n\n

Please do not use text, photos, or illustrations on this web page, web site, or newsletter without express permission from The Iowa Gardener. Many materials are copyrighted and reuse is violation of that copyright. Click here<\/a> to request permission to use. Thank you!<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

If I could have just 20 perennial flowers in my garden for both sun and shade, these are the ones I’d choose. By Veronica Lorson Fowler Just as with choosing your favorite children, choosing your favorite flowers is difficult. But I bit the bullet and did it. 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