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Lespedeza: A Lollapalooza in the Garden

By Larry Rettig (LarryRJuly 23, 2009
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I first became acquainted with Lespedeza as a ninth grader, doing research for a project on soil erosion.

Gardening picture

 

Lollapalooza

Syllabificationlol·la·pa·loo·za
Pronunciation:
ˌlä-lə-pə-ˈlü-zə
Hear pronunciationClick here
Function
noun
Original meaning
an exceptional
or unusual person or thing
Origin:  uncertain; first appeared
as an Americanism sometime
after
1900

 

 

Back then, and yet today, Lespedeza is known first and foremost as an agricultural crop, raised for forage and erosion control.  As a member of the legume family (formerly Leguminosae, now divided between Papilionaceae and two other sub-families), it also fixates nitrogen in the soil, raising the soil's fertility.  Other nitrogen-fixing legumes include alfalfa, clover, peas, beans, lentils, lupines, and peanuts.  Although there are several native lespedezas in the U.S., agricultural lespedezas are imported non-natives.

Lespedeza cuneata (more below), Striate Lespedeza (Kummerowia striata), and Korean Lespedeza (Kummerowia stipulacea) were introduced into the United States in the early 1900s.  By mid-century large acreages were planted with these varieties. However, lespedeza use dropped sharply when other, more productive legume species and new fertilizers came into widespread use.  In the interim, the original agricultural lespedezas have been improved through breeding programs to the point where interest in them as forage crops is again increasing.

But that's not the whole Lespedeza story.

There are several garden-worthy species that are part of today's horticultural scene, although they're still lurking in the background at this point.  They deserve better.

I'd like to introduce you to three varieties that I grow in our gardens.  My first acquisition was Lespedeza thunbergii 'Gibraltar' (see photo above), also known as Pink Bush Clover (although technically not a clover and technically not pink).  It has proven to be bone hardy in our zone 5a garden, coming back vigorously every spring.  A well-behaved sub-shrub, it grows about three feet tall and about as wide.  The cluster of branches arises at soil level in mid-spring and grows upward and outward in graceful arches.  Even when not in bloom, this plant adds beauty and interest to the garden.  It gradually grows to approximately two feet.

At this point, plant growth slows until late summer, when a growth spurt sends the branches upward another foot or more.  Soon pendant panicles of pinkish lavender flowers appear at the tips of the branches and dangle from the leaf axils along each branch.  The blossoms, as is typical of legumes, resemble the flowers of peas.  The pendant clusters are reminiscent of miniature wisteria blossoms.

To my great delight I discovered that there is an advantage to this late summer/early fall growth spurt.  The shorter perennials that are neighbors to one of the lespedezas in our gardens are not in bloom at this point and the area is devoid of color.  The weeping branches hide them from view somewhat and fill the area with that beautiful pinkish-lavender hue.

Image
 L. thun. 'Alba' with salvia; Inset: white blossoms
Image
L. thun. 'Edo-Shibori'
 
The second Lespedeza variety in
 
our gardens is Lespedeza thunbergii ‘Alba'. As the varietal name implies, its blossoms are white.  It blooms a bit later, grows a bit taller, and is more upright than ‘Gibraltar.'  At the back of a large bed of red annual salvia, it provides pleasing shades of green as a background for the sea of red blooms.  In September the blossoms add white to the mix, providing additional interest.

A more recent acquisition is Lespedeza thunbergii ‘Edo-Shibori'.  Its bi-colored blooms are especially attractive.  I grow this variety in a pot, because it's a bit less hardy, and I can move it around the garden as an accent plant or locate it somewhere where I can enjoy its pendant blossoms as I come and go.  Like 'Gibralter' and 'Alba', Edo-Shibori's branches are very light and flexible, moving with the slightest breeze--much like many ornamental grasses.  The element of motion adds a welcome dimension to the garden scene, catching the eye as it surveys the garden landscape.

If you're looking for an unusual plant that is hardy, long-lived, easy to grow, and adds color to the garden late in the growing season, why not try a Lespedeza?  You'll be glad you did!

                                                            Lespedeza Up Close



 

 The Lespedeza Clan
(Click name for more information)

Creeping lespedeza
Lespedeza repens

Tall lespedeza
Lespedeza stuevei

Texas lespedeza
Lespedeza texana

Violet lespedeza
Lespedeza violacea

Wand lespedeza
Lespedeza virgata

Oriental lespedeza
Lespedeza formosa

Leafy lespedeza
Lespedeza cyrtobotrya

Dahurian lespedeza
Lespedeza daurica

Narrowleaf lespedeza
Lespedeza angustifolia

Hairy lespedeza
Lespedeza hirta

Lespedeza
Lespedeza tomentosa

Lespedeza
Lespedeza pilosa

Lespedeza
Lespedeza maximowiczii

Lespedeza
Lespedeza tetraloba

Lespedeza
Lespedeza buergeri

Lespedeza
Lespedeza neglecta

Lespedeza
Lespedeza brittonii

Lespedeza
Lespedeza manniana

Lespedeza
Lespedeza potaninii

Bush Clover
Lespedeza japonica

Bush Clover 'Alba'
Lespedeza thunbergii

Bush Clover 'Samindare'
Lespedeza thunbergii

Bush Clover 'Avalanche'
Lespedeza thunbergii

Shrub Bush Clover
Lespedeza bicolor

Primary Varieties
for
 Agricultural Use
 
 

Image
      Courtesy Missouri State University

Lespedeza cuneata

Image
                Courtesy Purdue University

Kummeroia stipulacea

Image
                Courtesy Purdue University

Kummeroia striata

____________

 Growing Information   

Height:  3-6 ft.

Spacing:  6-8 ft.

Hardiness:  USDA Zones 4a to 9b

Exposure:  Sun to Partial Shade

Bloom Color:  Pink, Lavender, White, Bicolor

Bloom Time:  Late Summer, Early Fall, Mid Fall

Foliage:  Herbaceous, Various Shades of Green, Smooth-Textured

Moisture:  Average Water Needs, Do Not Overwater

Native Lespedeza
on Endangered Plants
List

Image
                     Image in public domain
Endangered Lespedeza angustifolia,
'Narrowleaf Lespedeza'

Image
                                 Courtesy of USDA
Lespedeza angustifolia distribution

Invasive Chinese Lespedeza cuneata

Sometimes called Sericea Lespedeza, it invades open areas (meadows, prairies, wetland borders and fields).  Crowding out native plants, it is a prolific seed producer, which ensures its persistence at any given site.  Dense stands suppress native flora throughout the U.S.  Its high content of tannin makes it inedible for native wildlife and domestic livestock.

Chinese Lespedeza is native to Asia.  It was introduced into the southern U.S. by federal and state agencies as an agent for soil improvement/ stabilization and as cover for wildlife.

Image
                          Courtesy of USDA
Lespedeza cuneata (yellow form)

Full size picture of Pink Bush Clover (Lespedeza thunbergii)

Here I've paired Lespedeza 'Gibraltar' with shades of lavender vinca and alyssum to create a monochromatic garden scheme.


Sources for garden Lespedezas:  'Gibraltar', 'Alba' and 'Edo-Shibori'

 

Questions? Comments?  Please scroll down to the form below.  I enjoy hearing from my readers! 

Thumbnail photo at beginning of article is courtesy of mgarr.

© Larry Rettig 2009

 

 


  About Larry Rettig  
Larry RettigAn enthusiastic gardener for over 50 years, my first plant was a potted Ponderosa Lemon tree ordered from a comic book ad at age 15. I still have it, and itís still bearing lemons! My wife and I garden on 3/4 of an acre, both flowers and vegetables. Although our garden is private, it's listed with the Smithsonian Institution in its Archives of American Gardens and is on the National Register of Historic Places. We garden organically and no-till. Our vegetable garden contains a seed bank of vegetables brought to this country from Germany in the mid-1800s. For more info: http://davesgarden.com/community/blogs/m/LarryR/. Photos that appear in my articles without credit are my own.

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» Read articles about: Perennial Flowers, Garden Design And Landscaping, Fall Gardening, Endangered Plants, North American Native Plants, Legumes, Lespedeza, Salvias

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Discussion about this article:
SubjectTopic StarterRepliesViewsLast Post
alyssum with lespedeza agenteman 1 12 Jul 22, 2010 10:09 PM
alyssum agenteman 1 7 Jul 22, 2010 8:39 PM
Article mgarr 11 73 Apr 6, 2010 7:54 PM
lespedeza cuneata? gingerlily 1 12 Aug 14, 2009 3:14 AM
where to find and mine looks bit raggedy midrashist 1 12 Aug 1, 2009 9:05 PM
Found it! treborepooc 1 18 Jul 29, 2009 5:10 PM
Listed-with- the-Smithsonian GARDEN? treborepooc 0 10 Jul 29, 2009 4:55 AM
Lespedezza arbs 1 26 Jul 28, 2009 5:55 AM
Great Article, Larry Petalpants 2 31 Jul 26, 2009 10:16 PM
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