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PLANTS TO GROW FOR BEAUTIFUL GARDENS AND STUNNING ARRANGEMENTS

With the Garden Club of Virginia’s annual Historic Garden Week tours upon us, here are a few suggestions for  plants you can grow and use in arrangements like those  you see on tour.  I highlight four arrangements here that were created for last year’s tour by the talented gardeners and arrangers Susan Robertson, Margy Brown, Ida Farinholt, Sally Ellington and Gretchn Japhet.  Almost all of the plants used in the arrangements came from their own and others’ gardens.

The mantel arrangement above is like a Virginia spring garden that snuck indoors.  The backdrop of the stone wall, rough hewn timber mantel and simple galvanized metal container is perfect for the natural arrangement displaying many native plants.  Included in the arrangement are false indigo (Baptisia australis, native), kousa dogwood (Cornus kousa — it’s cousin, Cornus florida, is native), lenten rose (Helleborus orientalis), dixie wood fern (Dryopteris x australis, native), Autumn Fern (Dryopteris erythrosora), the foliage of coral honeysuckle (Lonicera sempervirens, native) and Catmint (Nepeta x faassenii).

Kousa dogwood was used in the arrangement, but the native flowering dogwood, which flowers earlier and before it leafs out, is a fantastic choice for your garden.  Kousa dogwood, native to China, supports no insect herbivores.  Our native dogwood supports 117 species of moth and caterpillar as well as many other insects. http://www.bringingnaturehome.net/gardening-for-life.html

False Indigo, with its sweet pea-like flowers, is native, prefers part sun, and is attractive for its foliage and bloom.

Lenten Rose is one of my favorite plants.  It is evergreen, the blooms (actually the bracts), persist for up to three or four months, and it happily, but not aggressively, self-seeds. It is happiest in part shade or shade.

The native Dixie wood fern and the young (red) fiddlers of autumn fern were used in the arrangement.  Another lovely fern, which is native, is Lady Fern (Athyrium filix-femina).  It is more delicate than most ferns, but provides an airy sweep in the garden.

The greens in the arrangement above allow the spectacular peonies (Paeonia latifolia) and bearded iris (Iris germanica) to stand out.  Supporting players are both the native solomon’s seal (Polygonatum  biflorum var. commutatum and it’s variegated cousin (Polygonatum odoratum var. pluriflorum ‘Variegatum’), false indigo, lenten rose, and  blue star (Amsonia tabernaemontana).

The iris used in the arrangement is bearded iris.  Above are two siberian iris cultivars (Iris siberica ‘Caesar’s Brother’ and ‘Butter and Sugar’).   Siberian iris, as well as the native blue flag iris (Iris versicolor) will tolerate wet soil conditions.  The sword-like foliage provides nice structure in the perennial border when the plant is not in bloom.

Amsonia hubrichtii (threadleaf bluestar) is pictured above.  The native Amsonia tabernaemontana (eastern bluestar) is pictured below with the native blue flag iris).  A. hubrichtii has spectacular yellow fall foliage. Amsonias tolerate full sun to part shade, and benefit from having their foliage cut by 1/3 to 1/2 after blooming for less floppy foliage (the foliage will continue to grow).

The native Giant Solomon’s Seal,  Polygonatum biflorum var. commutatum, can be found in Richmond’s James River Park System.  It will tolerate wet soil and prefers shade.

These bottle bud vases are such a great way to remove the stress of arranging and make use of the bounty of the garden at any given time in the growing season.  Early cottage roses and tulips join the catmint, lenten rose and greens for a lovely tableau.Single tulips underplanted with violas.

The roses above are in the gardens of Dumbarton Oaks.  I’m not sure of the species.

The arrangers took advantage of last year’s early spring, using these gorgeous, billowy peonies, and masterly pulling out the subtle deep and soft pinks of the lenten roses and peony buds.

Peonies intermingle happily with catmint, false indigo and boxwood.

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HOLLYWOOD CEMETERY’S HERITAGE ROSES

 

Hollywood

Richmond’s historic Hollywood Cemetery, renowned for being the resting place for many notable Virginians, is also home to a vast collection of heritage roses, many with fascinating histories of their own. I first became acquainted with Hollywood’s roses in 2011, when I worked with fellow members of the James River Garden Club (JRGC) to update Hollywood’s Notable Tree and Rose Map.  James River’s Evie Scott, Hollywood general manager David Gilliam and Van Yahres Associates, a site design firm in Charlottesville that advises Hollywood on its legacy trees, led the endeavor.

cabbage

Connie believes the Goodall Rose is ‘Radiance’, a hybrid tea.

Fast forward to the summer of 2012, when Kelly Wilbanks,  Executive Director of Friends of Hollywood, turned her attention to the roses. Kelly understands both the historic and horticultural importance of the roses to the cemetery.  Determined to find someone with rose knowledge to help her at Hollywood, she attended a Richmond Rose Society meeting.  Kelly says, “I wasn’t even sure what help meant and had no idea where it might lead or what it might produce.”

not sure

‘Cecile Brunner’ climbing rose envelopes the Harrison monument

Happily for Kelly, Connie HIlker, owner of Hartwood Roses in Spotsylvania County, was at the meeting, and immediately jumped at the chance to help.  Kelly discovered that Connie had been studying, documenting and propagating Hollywood’s roses for several years (see Connie’s blogs on the Hollywood roses). Talk about a fortuitous meeting!  Kelly had found an expert who already knew Hollywood’s roses as old friends, and Connie would be able to continue the work she had begun, but now she would do so in conjunction with Hollywood’s leadership.

hmm

The ‘Howe Rose’ is an unidentified Tea rose

Since that meeting, Connie has worked with Hollywood Grounds Supervisor Donald Toney to locate and identify over 100 heritage roses in the cemetery, and devise a maintenance and conservation schedule. The identification includes noting the class, growth habits and present condition of each rose. Connie very kindly took the time to identify for this post several Hollywood roses.

Larus

Connie has not yet identified the Larus Rose, but it is one of her favorites.

My next brush with Hollywood’s roses came while touring  the grounds of Tufton Farm and Monticello that fall with JRGC.  At Tufton (home to the Thomas Jefferson Center for Historic Plants), I learned the intriguing history of ‘Champneys Pink  Cluster’ Noisette. The name rang a bell, because I had come across the rose while doing the research for the updated Notable Tree and Rose Map at Hollywood.

champneys at HW

‘Champneys Pink Cluster’ rose in Hollywood Cemetery

‘Champneys Pink Cluster’ Rose is credited as the first Noisette. I had always assumed that, given its name, Noisette’s heritage was French.  Not so!   In the early 1800‘s John Champneys, president of the South Carolina Horticultural Society,  crossed the white musk cluster rose (Rosa moschata) and the ever-blooming ‘Old Blush’ China rose to produce ‘Champneys Pink Cluster’, with clusters of pale pink flowers that bloomed throughout the season.

Champneys close

‘Champneys Pink Cluster’ rose at Tufton Farm in Albemarle County

Champneys shared cuttings with Long Island nursery owner William Prince (who provided many plants to Jefferson) and with his Charleston neighbor, Pillippe Noisette.  Noisette, son of head gardener to Louis XVI (Phillipe came to America to avoid the French Revolution), produced his own seedlings, labeled them ‘Blush’ and shipped some to his gardener brother Louis Noisette in Paris.  There, Louis Noisette produced several varieties from the Champneys cross, and this class became known as Noisette.  While Mr. Champneys was not credited with the creation of a new repeat blooming cluster class of roses, he will always be lauded by rosarians for initiating the beloved Noisette class.

roses at Tufton

At Tufton farm, ‘Champneys’ is grown on these good looking, simple, rustic supports

After touring Tufton, we popped over to neighboring Monticello.  There, Peggy Cornett, director of the Thomas Jefferson Center for Historic Plants, drew our attention to Rosa moschata, or musk rose (a parent of ‘Champneys’).  In 1985, rose rustler Marie Butler discovered the musk, thought to be extinct, in Hollywood’s Crenshaw plot.  In 1998, Peggy, Douglas Seidel and Diane Lowe discovered a musk at The Recess at Bremo plantation.   The Bremo Musk has since been dated to 1815.  The musk now growing at Monticello was subsequently propagated from the Bremo Musk. Extensive research was done by many, including Cornett, Seidel and Butler (recounted in a paper published by the Southern Garden History Association), in an attempt to find a link between the Bremo Musk and the Crenshaw Rose, but no connection has been made. As Butler stated, “the discovery of the musk rose in America retains its aura of mystery.”

I apologize for this  woefully inadequate and brief attempt to summarize the complex history of these roses.  Meticulous and fascinating research has been done by Cornett, Seidel, Butler and others.  That research spans over four centuries, features Jefferson’s pursuit of the musk and follows the trail from Charlottesville to Long Island, Chesterfield, Hillsborough, Charlotte and, of course, Hollywood.  For anyone interested in a fascinating example of the intersection of American history and botanical history, I recommend that you begin your exploration with Monticello, the Heritage Rose Foundation and the Southern  Garden History Association.

Helen S Reed

James River Garden Club member Helen Scott Reed inspects the Musk Rose growing near Monticello’s portico.

Meanwhile, back at Hollywood . . .  Kelly and Connie took the next step toward restoring the historic roses to their former glory.  They held the inaugural Hollywood Rose Volunteer Workshop on a blustery day last March. Connie gave each group of 3 or 4 volunteers a list of assigned roses, a location map and instructions for specific pruning requirements for each plant.

crenshaw before

Stephen Scaniello and Anne Call pruning the legendary Crenshaw Rose

Anxious to follow up on our rose mapping project, curious to learn more about the roses, and excited to take part in such an ambitious and worthy horticultural and preservation effort, I came raring to go.  I will be forever indebted to Kelly for grabbing me and teaming me up with Peter Toms, the delightful Chairman of Friends of Hollywood, Stephen Scaniello, president of the Heritage Rose Foundation and former director of the famed Cranford Rose Garden at the Brooklyn Botanic Garden and volunteer Anne Call.

crenshaw after

Stephen, Anne and Peter Toms admire their handiwork on the Crenshaw Rose.

And then the day got even better — Connie assigned our group the task of pruning the cemetery’s most celebrated rose.  Yes, the rose Peggy Cornett told us about at Monticello:  the Crenshaw Rose!  As reported by Peter in the Friends of Hollywood Newsletter, Stephen advised us, “think about what you are cutting and what it will look like when you do.  Take your time.  Have in mind the shape you ultimately want to achieve, and the height.  This is a cluster-flowered rose.  In fact, it is the ‘mother of all cluster-flowering roses.’”  We tamed that mother on that chilly March day!

crenshaw with stone

My visit to Hollywood in late May last year was a little early to capture the Crenshaw Rose in its peak glory.

crenshaw close at HW

Check out the abundance of buds on the Crenshaw Rose!

Hollywood is holding its second annual rose volunteer work day this Saturday, March 15.  If you love Hollywood’s history and grounds or are a passionate gardener who likes to roll up your sleeves, I highly recommend spending the day giving the historic roses some much appreciated love and care.  Contact Kelly Wilbanks, kwilbanks@hollywoodcemetery.org for more information.

rambler?

The bright red of this rose, possibly a ‘Crimson Rambler’, stands out against the soft new growth of the Boxwood.

In closing, I’ll leave you with a few pruning tips from Stephen Scaniello’s A Year of Roses:

Remove dead and diseased wood. Canes with unusual dicooration or severe looking blotches should be removed.

don't know

Remove weak, spindly canes and crossing branches from the center of the plant to allow air to circulate the plant.

close up of?

The Doswell Rose is an unidentified ‘Alba’.

Shorten remaining canes, making each cut about a quarter inch above a bud eye (the swelling red point located along the cane). These buds develop into new branches that will produce a flower. Because the new growth grows in the direction of the bud eye, be sure to make your cuts above outward facing buds.

pres circle

An ‘Old Blush’ rose by Presidents Circle thrives. Some bushes in this area have perished in recent years.

BOXWOOD BLIGHT ALERT

 

BOXWOOD BLIGHT UPDATE Grasses

When I last reported about Boxwood Blight (Cylindrocladium buxicola) in my blog,  the only known infected plants in Virginia had been quarantined in a nursery on the North Carolina border. The nursery industry and the Virginia Department of Agriculture acted immediately to establish best practices to  limit the spread of the blight, and the industry, the government and academia have been working to find ways to combat the disease. Unfortunately,  these efforts have not succeeding in isolating the disease.  Boxwood Blight has now been reported   in residential gardens from North Carolina to Rhode Island, and has been confirmed here in Richmond. Studies have also found that Sarcococca (Sweetbox) and Pachysandra terminalis may also be hosts for the Blight.

 I’ve found Saunders Brothers Boxwood Nursery to be the most thorough and  current  resource for both historical and developing information on the Blight. If this is a subject that affects you, please check the Saunders Brothers website and your local extension agency for the latest updates.  The American Boxwood Society will hold its annual symposium May 14-16, 2014, and will devote significant time to Boxwood Blight.

THE SYMPTOMS:

  • Dark brown spots on leaves, may eventually cover entire leaf
  • Black streams on stems that appear to move from bottom of plant to top
  • Severe defoliation and dieback
  • North Carolina State University has some good images of plants infected with the Blight.

TREATMENT AND PREVENTION

  • It is now accepted, based on research in Europe where gardeners have been dealing with the Blight since the mid 1990’s,  that Boxwood Blight is not something that will be eradicated or even prevented, but is instead something that we need to learn to live with and manage (as we do with pysillid and leaf miner).
  • The United States Department of Agriculture recommends

     removing infected twigs, fallen leaves and the topsoil under affected plants because the fungus can persist on fallen leaves and debris.

  • Saunders Brothers recommends ensuring good air flow in and around plants, ample sunshine, and no overhead irrigation.  USDA recommends regular fall pruning to thin the branches of English Boxwood (Buxus sempervirens ‘Suffruticosa’) or other tightly growing Boxwood,  to provide air circulation, thus making it harder for the fungus to incubate and spread. This is especially important for tightly growing hedges.

  •  Saunders Brothers also reports that some “fungicides are very effective in controlling the disease, particularly when applied just before a prime infection period, which would be average temperatures in the 60’s to 70’s and complete wetting of the plant for an extended period”.  Please contact your trusted landscaper, extension agent or nursery for more specific guidance on this front.

LESS SUSCEPTIBLE CULTIVARS

 English Boxwood seems to be the most susceptible Boxwood to the Blight. Saunders Brothers and North Carolina State University are aggressively researching which cultivars of Buxus are most resistant to the Blight.  This from Saunders Brothers:

“We continue to work with the researchers at NC State as they do varietal susceptibility trials.  This spring we took a second load of plants to begin testing.  The good news is that early tests show several of the varieties we have grown for years appear to have very good resistance to Boxwood Blight.  ‘Green Beauty’, Insularis ‘Nana’, ‘Golden Dream’, ‘Winter Gem’, ‘Dee Runk’, ‘Fastigiata’, ‘Green Gem’, and ‘John Baldwin’ all show considerable resistance to the disease.  ‘Green Mountain’ and ‘Jim Stauffer’ both show some resistance.”

If you think your Boxwood are infected with Boxwood Blight, consult a trusted landscape expert and/or bring a sample (double-bagged) to your local extension office for diagnosis.

FLOWERS FOR THE OCTOBER GARDEN

 

DSC_0301

Yes, October means our Maples, Ginkgos, Black Gums and Sourwoods step out of the background and take center stage. But it’s not all about the foliage in October. Several plants are blooming their heads off this time of year.  Here are a few to consider adding to your garden  to extend the bloom season into fall.

Lespidesdra

 

In Peggy Valentine’s charming garden, Lespedeza thunbergii (also called Pink Bush Clover) spreads its pink wings, while Japanese Anemone (Anemone japonica) climbs through it.  In the foreground, Hardy Begonia and Sedum compete for attention.  The Begonia pictured was named for Peggy.  She allows plants such as the Lespedeza and Begonia to spread sparingly.  I’m envious of her ability to balance volunteers in both numbers and species to create a seemingly spontaneous yet dazzling plant palette.

Morning Glory

Honorine Jobert Anemone (Anemone japonica ‘Honorine Jobert’) is a great perennial to tuck in the back of most perennial borders.  It grows unobtrusively until late summer, when its stem shoots up to about 3 feet, producing single white flowers that bloom profusely until a hard frost.  Many gardeners find Morning Glories to be a pest, but I can’t help loving them. The Morning Glories in my yard have become good friends with my Anemones.

Cardinal flower and ageratumCardinal Flower (Lobelia cardinalis) and the perennial form of Blue Mistflower (Eupatorium coelistium) happily co-exist in the perennial bed.  Plant them with earlier flowering perennials such as Columbine (Aquilegia, spp.) and False Indigo (Baptisia australis). The Eupatorium and the Cardinal Flower are naturally found near stream banks and will grow in damp soils.

Blue Lobelia

Great Blue Lobelia (Lobelia siphilitica) is another native Lobelia found in the wild near stream banks.  This little guy popped up in the cracks of a garden path.

Ageratum and Lantana

The annual form of Eupatorium (Ageratum houstonianum) pairs nicely with other annuals, like this Lantana which blooms all summer.

Spider flower

Mary Glen Taylor’s lovingly tended four-season garden is full of fall-blooming flowers. Her Spider Flower (Cleome hassleriana) leads the way to the beautiful garden gate.  Cleome is a drought-tolerant self-seeding annual that grows in sun and part shade.  If you don’t want it to bloom next year, be sure to cut it back before it sheds its seeds.

Tufton asters

I didn’t catch the name of this Aster blooming at Monticello’s Tufton Farm, but it looks like the Michaelmas Daisy, or Monch Aster (Aster x frikartii ‘Monch’).  At Tufton Farm, the focus is on plants important to America’s horticultural heritage.  Thomas Jefferson was interested in learning about plants native to Virginia, native to other parts of the United States (many of which were  brought back by Lewis and Clark) and native to Europe.  Tufton propagates plants from all of these places, and supplies Monticello with many of the resulting plants.

Aster and zinnia

Melinda Hardy hijacked my camera to catch this bee hovering around the Asters and Zinnias in garden writer Marty Ross’s expansive Gloucester garden.

Globe amaranth

Globe Amaranth (Gomphrena globosa — sounds like a communicable disease!) is another late-blooming annual to give color to the fall garden. It grows 12-24 inches.  The actual flowers are insignificant — the bracts are the showy part of the plant.

Phlox

Mary Glen collected this Carolina Phlox (Phlox carolina) in Roaring Gap, North Carolina. Mary Glen says that it reseeds in this pale pink and in a hotter pink, and blooms all summer (and fall).

Passionflower

Collect the seeds of Purple Hyacinth Bean (Lablab purpurea) and plant next spring along a fence for gorgeous late summer and fall blooms.

Corydalis

Corydalis (Corydalis lutea) blooms all summer when happy.  It prefers rich, moist soil that never dries out.  It is a rampant weed in cool, damp climates, but stays under control in our hot and humid weather.

DSC_0601 - Version 2

My Capital Trees buddies and I came upon these Autumn Crocus (Colchicum autumnale) in Brent and Becky Heath’s garden (Brent and Becky’s Bulbs) in Gloucester. Plant these bulbs where perennials such as Bleeding Heart (Dicentra) go dormant in summer.

Dalias

This exuberant perennial bed in Brent and Becky’s garden is bursting with pink Dahlias. Growing Dahlias is a labor of love In Richmond, because the tubers should be dug up and stored each winter. You might get away with leaving Dahlia tubers in the ground over a mild winter in Zone 7, but you risk harming or killing them if we have a harsh winter (which some predict this year).

Camellia Hana Jiman

Sasanqua Camellias usually bloom for a good two months in fall.  This single-flowered Camellia is Hana Jiman.

Iceberg Roses

In Virginia, roses come alive again once the heat retreats. This Iceberg Rose makes a beautiful hedge.

Hydrangeas

Fading plant blooms give the fall garden a melancholy beauty. Peggy’s garden is filled with Hydrangeas that turn bronzy pink in fall.

Sedum

The Sedum’s dried flower heads look smashing against Mary Glen’s red brick wall.   Reddening Begonia leaves are in the background and the tiny pink blooms of the Jewels of Opar (Talinum paniculatum) are in the foreground.

Sourwood

The fading blossoms of the native Sourwood (Oxydendrum arboretum) are highlighted by the red fall folliage of the tree.

beauty berry

The pink berries of this native American Beautyberry (Callicarpa americana) growing in Marty Ross’s garden are just beginning to ripen.  Beautyberry attracts birds and is drought tolerant.  Plant it behind a low evergreen shrub or dwarf Butterfly Bush (Buddleia davidii). Cut it back generously in late winter or early spring to keep it from getting too gangly.

The air is crisp.  The earth is still warm. There’s no better time to dig in the garden.

MID-SUMMER GARDEN CHORES

Since spring is now in the rearview mirror, it is time to . . .

CUT BACK HARDY GERANIUM, CATMINT AND LAVENDER

Geranium

 Cut flowering stems back once blooms begin to peter out.  The plants will begin to bloom again in a few weeks. Gernanium x ‘Johnson’s Blue’ is pictured above.

 PRUNE  SHRUB AND CLIMBING ROSES

Roses

Prune vigorously growing shrub roses (like Knockouts) back at least 12 inches, cutting each branch to just above a 5-leaf stem, to keep the roses from growing too big.  If you don’t mind them being 4 to 5 feet tall, just dead-head the spent clusters of blooms. Prune climbers as needed to train and keep under control. Feed roses every 6 weeks during the growing season (until early September).

CONTINUE TO CUT BACK LENTEN ROSE (HELLEBORUS) FLOWER STALKS AND LEAVES WHEN THEY BEGIN TO YELLOW

Hellebores

 PRUNE  STRAGGLY GROWTH OF EVERGREENS, IF NEEDED

July 2006 020

FEED AND DEAD-HEAD ANNUALS TO KEEP THEM BLOOMING

Reynolds

 REMOVE DYING FOLIAGE OF PLANTS GOING DORMANT

Virginia Bluebells

Virginia Bluebells (pictured above in background), Bleeding Heart, Arum and spring-flowering bulbs go dormant in summer.  Once the foliage begins to brown you can cut it to the ground.

WEED!!!!!