Tried and True Perennials
Prepared for the River Falls Garden Club
by Dr. Terry Ferriss, University of Wisconsin-River Falls

Perennials for Sun - Perennials for Shade

Perennials for Sun

Phlox subulata
bulletMoss or Creeping phlox
bulletNative to Eastern US
bullet3-6 inched tall, 2 ft wide
bulletApril/may flowering
bulletWide variety of colors
bulletFoliage evergreen/great ground cover
Geranium sanguinium
bulletHardy or Perennial Geranium
bulletNative to Turkey, India, Tibet
bullet18-24 inched tall, mounding to 1 ft wide
bulletFlowers May/June and sporadically all summer
Alchemilla mollis
bulletLady's Mantle
bulletNative to Europe
bulletFlowers June-July; yellow/green inflorescence
bulletGreat photograph after a rain
bullet8-10 inches basal foliage and up to 18 inches in flower
Paeonia lactiflora
bulletGarden peony
bulletNative to China, Mongolia, Siberia
bullet3 ft, shrubby
bulletFlowers June, wide variety of colors and flower types
bulletReasons for poor flowering: insufficient light, planted too deep, need dividing, improper fertility, excess heat, disease
bulletAnts are not harmful or helpful
bulletTypes of peonies
Phlox paniculata
bulletGarden phlox
bulletNative to Eastern US
bullet2-4 ft clumps, stiff erect stems
bulletFlowers July-Sept; primarily white, pink, purple, some with eyes and some without eyes
bulletPowdery mildew can be a problem, lower leaved will drop first so plant something shorter in front of it to hide the possible "bare legs"
bulletRemove old flowers to encourage laterals to flower
Artemisia schmidtiana
bulletSilver Mound
bulletNative to Japan
bullet12 inch mound
bulletFlowers in late summer with grayish balls, removal will keep mound tighter
bulletDoes well in poor soils
Artemesia ludoviciana
bullet'Silver King'
bulletNative to the western half of the US; look along roads in MN and WI for this one in wild form
bullet2-3 ft tall
bulletFlowers in the summer with white dense panicles
bulletValued most for its white/silver foliage and height
bulletTolerates poor soils, can become invasive in rich soils
Sedum spectabile
bullet'Autumn Joy'
bulletShowy Stonecrop
bulletNative to Japan
bullet18-24 inches tall
bulletFlowers form in early summer and turn from green dense heads to pink and finally to deep red in late fall
bulletEasy and reliable plant
bulletAttracts butterflies
Hemerocallis sp.
bulletDaylily
bulletNative to East Asia
bullet1.5-4 ft tall
bulletSword like leaves that arch over
bulletFlowering primarily in July-Aug depending on cultivar
bulletWide variety of color options
bulletLow maintenance
Rudbeckia fulgida
bullet'Goldstrum', Black-eyed Susan
bulletNative to Eastern North America
bullet30 inches, overall shape is vase-shaped
bulletFlowers in August; "cones" persistent and create winter interest
bulletEasy, looks good with pervoskia, ornamental grasses and Sedum spectabile

Perennials for Sun - Perennials for Shade - Back to the top

Perennials for Shade

Epimedium x rubrum
bulletBarrenwort
bulletHybrid origin
bullet8-12 inches tall and mounding to 12 inches wide
bulletFlowers in May before the new foliage emerges therefore cut back the old foliage in early spring to allow full appreciation of the flowers
bulletTolerates dry shade well; makes an excellent ground cover and good texture contrast to hosta
Hosta
bulletHosta, Funkia, Plantation Lily
bulletNative to China and Japan
bullet3 major heights: less than 12 inches
                          12 - 30 inches
                          30 - 48 inches
bullet4 major foliage colors: green, blue, yellow, cream; the leaves can have 1 or 2 colors typically in various patterns
bulletPlant habit is squat rosette to upright vase-shaped rosette
bulletFlowers in mid to late summer, some are fragrant
bulletThe American Hosta Society
Pachysandra terminalis
bulletJapanese pachysandra or spurge
bulletEvergreen
bullet6-8 inches tall, excellent ground cover
bulletFlowers of white appear in May and again in Sept but are not real showy
Cimicifuga racemosa
bulletBlack Snakeroot, Bugbane
bulletNative to Eastern North America
bulletFoliage 2-3 ft tall and flower spikes are up to 8 ft tall
bulletFlowers of white fluffy spires appear in June/July
Astilbe x arendsii
bulletAstilbe or False spirea
bulletNative to China, Japan, Korea
bulletFlowers in June and July
bulletMoist soil is important
Astilbe chinensis 'Pumila'
Astible chinensis 'Taquetii'
bulletDwarf Chinese Astilbe
Chinese Astilbe
bulletBoth of these are much more tolerant of dry soils than the arendsii types
bulletBoth have purple flowers only
bullet'Pumila' is a ground cover and is 8 inches in flower
bullet'Taquetii' is up to 3 ft tall
Bergenia cordifolia
bulletPig Squeak or Heartleaf Bergenia
bulletNative to Siberia
bulletEvergreen
bulletFlowers in large pink/white clusters in April/May
bulletExcellent large-leafed perennial for foliar characteristics

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