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Perennial Descriptions (A to E) 

Achillea millefolium (Yarrow)

    

Long blooming season, often blooming all summer. Flower heads are made up of flat, small clusters of individual flowers. Leaves are frilly and airy. Comes in a wide variety of colors and size. We have a white one located by the grasses on the playground which grows about 12-18 inches high and wide.   

 

 

 

 

 

 
 
Achillea millefolium rubra (Yarrow)

    

Same as above. Flowers are red. Grows 12-24 inches high and 12-18 inches wide.

 

 

 

 

 

 

Actaea ramosa ‘Atropurpurea’- Formerly known as cimifuga racemosa (Bugbane, Fairy Candles)

    

2 ft. tall white flowers towering over deeply cut green leaves, in mid to late summer. Seedheads remain in autumn.

 

 

 

 

 

 
Agastache foeniculum (Anise Hyssop)

    

Purple flower spikes appear in mid-late summer on plants that stand 2-4 feet tall. Leaves have a black licorice scent.

 

 

 

 

 

 

Alchemilla mollis (Lady’s Mantle)

    

Umbrella like, hairy leaves that hold water in droplet form. Blooms are held above leaves, in early summer, in sprays of chartreuse; similar to Baby’s Breath. Grows  12-18 inches high and wide.

 

 

 

 

 

 
Allium cernuum (Nodding Onion)

    

Solid, flat, long grass-like leaves that arch towards the ground. Flowers appear mid-summer. A single flower scape is produced which may be white, light lavender, or pink. Flowers also hang downward.  1 ½ feet tall when flowering.

 

 

 

 

 

 
Alopecurus pratensis 'Aureovariegatus'  (Golden Foxtail Grass)

    

Variegated yellow-green, narrow foliage. Flowers in late summer. Grows to 2 feet tall.

 

 

 

 

 

 

Andropogon gerardii  (Big Bluestem, Turkeyfoot)

    

Native, perennial bunch grass. Narrow leaves are blue-green in spring and copper in fall. Flowers in branched clusters resembling a turkey’s foot. Grows 4-8 feet tall.

 

 

 

 

 

 
Antennaria plantagifolia (Pussytoes) 

    

Low growing plants, 1-4 inches tall; flower stalks reach to 1 foot.  Wooly gray leaves give rise to soft, fuzzy flower heads blooming whitish-gray often with pink tips.

 

 

 

 

 

 

 

Aquilegia (Columbine)

    

One of the only plants to be naturalized across the continental United States, adapting to many different climates and soil types. It is, also, one of the first plants offering food in the spring to hummingbirds.  Its blooms are often described as resembling birds of flight. In fact, colomba means “dove”, and aquila means “eagle”. This is a short lived perennial, although it reseeds itself frequently.

 

 

 

 

 

 
Arisaema triphyllum (Jack-in-the-Pulpit) 

    

This is a stemless plants. It has flower and leaf stalks that rise from underground corm. The species is highly variable. Its height ranges from 8 inches to 2 feet. Leaves are three-parted. The flowers are unisexual. They contain a spathe (the “pulpit”) which is covered by a spadix (“Jack”). The spadix contains tiny flowers of both sexes.  Inflorescences last from April to June and vary from white to greenish-yellow with purple or brown stripes.  Berries cluster on the thickened spadix and ripen by late summer to a bright red. Will form colonies. http://en.wikipedia.org/wiki/Inflorescence

 

 

 

 

 

 

 

Aruncus aethusifolius (Dwarf Goatsbeard)

    

Large, creamy white plumes, early to mid-summer; similar to astilbe.The foliage is finely cut. We have the dwarf form in our garden, growing 8-12 inches high and wide.

 

 

 

 

 

 

Asclepias incarnata  (Swamp Milkweed)

    

Clusters of fragrant, pink to rose flowers on 2-4 foot, thick stems. As the common name implies, prefers moist soils. Stems excrete a milky substance when cut (as do all milkweed). Seed pods in autumn.

 

 

 

 

 

 

Asclepsias syriaca (Common Milkweed)

    

Favored plant of Monarch butterflies, growing 2-3 feet high. This plant is not found in cultivation. It grows wild, wherever the seeds happen to drop. Seeds are carried by silk “parachutes” once they burst forth from the seed pod. Flowers are rosy-pink clusters and leaves are a silver green.

 

 

 

 

 

 

Asclepias tuberosa (Butterfly Weed)

    

Flat-topped, orange flowers in summer. As the common name suggests, they are very attractive to butterflies. Produces seed pods in the fall which split open to reveal  long-haired seeds. Long tap root; difficult to transplant. Leaves and stems are poisonous.

 

 

 

 

 

 

Aster x dumosus 'Wood's Pink' (Aster)

    

Late summer, early fall bloomer covered with small, daisy like flowers. This particular variety produces pink flowers on low, growing plants.

 

 

 

 

 

 

Baptisia australis (Blue False Indigo)

    

Grows into a bushy clumps of upright stalks, 3-4 ft. tall.  Showy tall, pea-like blue flowers in early summer; shiny, black seedpods in fall. Very striking plant.

 

 

 

 

 

 
Borago officinalis (Borage) 

    

Pristly, hairy stems and leaves. Flowers are normally blue though can be pink or white; and are star shaped. This is an herb and is a common ingredient in many European and Mid-Eastern recipes. Grows 2-3 feet tall.

 

 

 

 

 

 

 

Calamagrostis  x acutiflora (Feather Reed grass ‘Karl Forester’)

    

Slender, erect habit growing 4-6 feet tall with pink flowers in summer maturing to golden tan in fall.

 

 

 

 

 

Campanula (Bellflower) 

    

Heart-shaped leaves on low-growing plants with bell-shaped blue-purple flowers.

 

 

 

 

 

 
 
Campanula carpatica ‘Pearl White’ (Carpathian Harebell) 

    

Low-growing plants growing 6-12 inches high and wide.  White flowers bloom summer to fall with crinkled, green leaves.

 

 

 

 

 

 

 

Campanula x ‘Birch’s Hybrid’ (Bellflower)

    

Short 6 inch plant with nodding cup shaped flowers of purple blue.

 

 

 

 

 

 
Caryopteris clandonensis ‘Longwood Blue’, ‘First Choice’ (Blue Mist Shrub) 

    

A shrub-type perennial with a mounding habit. Silvery-green foliage with cobalt blue flower spikes appearing mid-summer to early fall. Grows 2-3 feet tall.

 

 

 

 

 

 
 
Centranthus ruber (Jupiter’s Beard) 

    

Showy rose-red flowers which bloom all season; growing 1-2 feet tall on a woody-based perennial.

 

 

 

 

 

 

 

Chelone glabra (White Turtlehead)

    

Distinctively shaped, white flowers which resemble a turtle’s head. The plant stands 1-4 feet tall with 6 inch lance-shaped leaves. Flowering occurs late summer.

 

 

 

 

 

 
Cleome hassleriana (Spider Flower) 

    

This is not a true perennial, but rather a re-seeding annual. Can be invasive.  Has long, waving stamen which are held on tall, strong leafy stems. It can grow to 4 feet or better. Also has a long blooming season, beginning in early July and lasting into the fall. Can be white, pink or purple.

 

 

 

 

 

 

 

Coreopsis ‘Crème Brulee’ (Tickseed)

    

An improved version of the popular ‘Moonbeam’. Threadleaf-type coreopsis growing in 12-20” tall clumps with daisy-like, butter yellow flowers; larger than ‘Moonbeam’.

 

 

 

 

 

 
Delphinium x culturum ‘Magic Fountain Lilac Pink’ (Larkspur)

    

Semi-dwarf form that grows only about 3 feet with the flower spike and about 2 feet wide.  Upright, large flower stalks that do not need staking.

 

 

 

 

 

 

 

Dicentra exima (Fringed Bleeding Heart)

    

Vase shaped mound of ferny like leaves, producing pink flowers in early spring and through summer. The flowers are heart shaped with a tear drop hanging from the bottom that resemble a………. bleeding heart.

 

 

 

 

 

 

Echinacea  purpurea  (Coneflower ‘White Swan’, purple coneflower )

    

Up to 4 ft tall and 3 ft wide flower clumps, producing daisylike flowers throughout the summer. Decorative seedheads attract birds, especially finches. Has medicinal purposes.

 

 

 

 

 

 
Echinops ritro (Globe Thistle)

    

Thistle -like, silver gray-green leaves producing 30-36 inch tall spiky, steely-blue globes; which flower July-August.

 

 

 

 

 

 
 
Erigeron annuus (Daisy Fleabane) 

    

 

 

 

 

 

 

 

 

Eupatorium fistulosum (Joe-Pye weed, Little Joe Dwarf Pye Weed)

    

Erect stems with hairy leaves, produce flat-topped, frizzy, fluffy mauve flowers in late summer, early fall. Full sized plants can reach 6 ft tall, the dwarf version around 3-4 ft.

 

 

 

 

 

 



References

Armitage, Allan, Armitage’s Garden Perennials, A Color Enyclopedia,  Portland: Timber Press, 2000.
Bellamy, Linda, The Illustrated A-Z Encyclopedia of Garden Plants, Richmond: Time-Life Inc., 2001
Roth, Susan, The Four-Season Landscape, Emmaus: Rodale Press, 1994.
Salmon, David, High Country Gardens, Spring 2008 catalog.
www.Botanical.com

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