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Posts Tagged ‘green wall’

It’s that wonderful time of year when the witch hazels are blooming outdoors and the orchids are filling the Conservatory at Longwood Gardens. But there’s another special thing that happens this week each year… The Philadelphia International Flower Show! This is the 182nd year for the show, and each year it seems to get better and better. The theme for 2011 is “Springtime in Paris” and I could not be more impressed with the quality of the displays, as well as the great diversity of garden exhibits and grand scale floral designs. After I finished my duties of judging over the weekend I had a moment to walk the show floor before it was open to the public. It was remarkable the similarities the show has to Paris, France AND Longwood Gardens!

Eiffel Tower at the 2011 Philadelphia International Flower Show

Longwood's Chimes Tower

As you first enter the Philadelphia Flower Show, you are greeted by a large scale representation of the Eiffel Tower. This mammoth structure seems to stretch more than 50′ in the air. It is illuminated and there is music and fragrance filling the air. I felt very small when standing beneath it, just as I do when I stand beneath Longwood’s grand Chimes Tower! Did you know that Mr. du Pont was 19 years old when he first saw the Eiffel Tower and was later inspired to build Longwood’s tower after seeing a similar structure in France? Our tower is 61′ tall and was constructed between 1929 & 1930. The new 62 bell carillon was installed in 2001.  Be sure to check Longwood’s website for the carillon concert schedule.

Another iconic image of Paris is the Arc de Triomphe, which is surrounded by the city itself.  The majestic arches and grand European design stand 164′ tall… that’s just 34′ taller than the highest water-jet shooting out of the Main Fountain Garden in the center of Longwood Gardens.  Mr. du Pont completed the Main Fountain Garden in the mid 1930s.  The original colored lights leave guests in awe and amazement to this very day.  Be sure to plan your summer around one of our spectacular Fireworks & Fountains evenings.

Arc de Triomphe

Arc de Triomphe

Main Fountain Garden Arches

The shows at Longwood were inspired by the fireworks seen at the Palace of Versailles, just outside of Paris!

Flower Show Setup

Speaking of Versailles, there is a great exhibit at the Flower Show that showcases a grand room in French style.  There are beautiful floral arrangements, exquisite furnishings, an elaborate fireplace with mantle, and fabrics of the richest materials hanging from the windows.  It’s almost like entering the Music Room at Longwood for the first time.  Your eye is immediately drawn to the ornate ceiling of molded and painted plaster that was originally installed in 1923.  The walls are made of walnut with silk panels and the floor is teak.  We have seasonally changing displays and exhibits on view in the Music Room with an exciting new one opening in April, 2011.

The Orangery & Exhibition Hall could be considered the palace at Longwood.  Mr. & Mrs. du Pont entertained guests in the Conservatory on many occasions.  Parties were held on the Exhibition Hall floor and the

Some of the 10,010 Pipes of the Longwood Organ

sound of music could be heard echoing from the grand Ballroom.  As guests entered the Ballroom the pink etched glass ceiling would have sparkled in each eye that looked upon it.  The parquet floor is of superior craftsmanship and the monumental organ would better than any organ they ever heard!  We have just completed restoration of the 10,010 pipe Aeolian organ, which was originally installed in 1930 and still stands as the largest Aeolian organ constructed in a residential setting!  We are celebrating the organ’s return by hosting concerts by world renowned performers throughout the season, but you may also hear the organ play itself on select afternoons using a computer installed during the renovation.

Glass Pyramid at the Louvre

Longwood Gardens has history, craftsmanship and art in such great abundance we might be considered a museum of sorts.  My favorite museum in Paris is the Musée du Louvre. I can’t help but be attracted to the glass pyramid that now stands in the entry of the Louvre.  It’s such a contemporary structure in the midst of the incredible historical buildings that house the museum.

Longwood's Iconic Curved Green Wall Roof

That concept is in practice here at Longwood with the opening of our new restroom facility complete with green wall.  The curved glass roof is a distinct change from the strong lines seen in the rest of the Conservatory complex, yet it echoes the same inspiration of simplicity and beauty.  Longwood’s green wall is the largest in North America.  We’re currently making a few improvements so that everything sparkles when the spring peepers make their entry.  Check back on March 25 when the green wall reopens and the plants are twice as lush as you might have seen before!

Speaking of green walls, there are two exhibits this year in the Flower Show that are using green walls to provide an impactful display. My favorite creates the look of a clipped allee similar to the maples in Longwood’s Main Fountain Garden or Italian Water Garden.  There were at least 15 types of plants in this Flower Show exhibit.

Clipped Allee of Green Wall Plants at the Flower Show

Here at Longwood, we have almost 25 different types of plants in our green wall, mostly ferns, with so many different textures you could spend an afternoon admiring each one.

I hope you can make it to the 2011 Philadelphia International Flower Show this week.  I’ll be there on Friday at 12:30 pm presenting a demonstration titled “Container Gardening Secrets from Longwood Gardens.” I’d love for you to stop in and say hello. Then, plan a visit to Longwood Gardens to compare the many French-inspired features! We’re creating Flower Show “WOW” 365 days per year!

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Longwood often hunts the globe for new or extraordinary plants to conserve and showcase in the Gardens. Recently, I went on a different sort of expedition—to inspect the plants for Longwood’s new East Conservatory Plaza green wall. My mission was to identify any potential pests or diseases that could threaten the new display.

Most plant collecting trips are about what we’d like to find, but my trip was what I hoped I didn’t find. Some invasive species were spread via the horticultural trade years ago, but many current introductions are the result of imports with infected packing material or other international cargo. As I traveled to Florida to inspect the plants, my mind ran to thoughts of red imported fire ants, red palm mites, pink hibiscus mealybugs, chilli thrips, and many others…

Operations Manager Marc Battaglini of Michael’s Nursery in Boynton Beach, FL (who has graciously sourced and grown on the plants in the green wall) welcomed me and introduced me to Shipping Manager Vivienne, Grower Lus, and the rest of the Michael’s team. A grooming crew had been putting in over 20 hours a week cleaning each of the 12”x12” panels that make up the green wall by hand.

Grooming crew workers at Michael's keep up the Green Wall panels

Grooming crew workers at Michael's keep up the green wall panels

This is no easy feat. As I stood under the shade cloth I checked my watch, it was not even 8:30 in the morning and the temperature had approached 90°F with almost 100% relative humidity.

The panels were laid out horizontally along many benches in the greenhouse, and were placed in the finished order they would occupy once shipped and installed vertically. The panels have occupied well over 5,000 square feet of greenhouse space at Michael’s since April of 2010, when they were assembled from individual plants and blank panels.

Spider plant, ballistic plant, spike-mosses, and many varieties of ferns are part of the wall. Within each panel, the plant types are randomly planted to avoid a repetitive, mechanical (or patterned) look.

It took me roughly five hours to scour the panels with the aid of a digital camera, hand lens, and various other specialized insect and disease sampling tools. The good news—no major invasive pests or diseases were observed that would delay or eliminate shipment. The bad news—Michael’s had been battling hot temperatures and an infestation of armyworm caterpillars. The hot temperatures caused plants to burn or grow slower on some panels and they will need to be replaced. The caterpillar pest migrates northward each year, and is something that was also a challenge to Longwood crops this summer.

We discussed our options for pre-shipment caterpillar treatments, and whether to delay or expedite shipping on the panels that contained plants where growth was affected by the heat. Thanks to the conscientious dedication of all parties involved, the plants were shipped and installed on time.

The wall was installed by Ambius, the principal contractor, and designed by Kim Wilkie, the landscape architect for the entire East Conservatory Plaza. Wells Appel of Philadelphia and several Longwood Staff also provided assistance.

The finished wall is the largest in North America, and contains over 3,600 individual panels reaching 14’ high. It winds around the entire inside of the new plaza, and as such it is truly a grand “green” addition to Longwood Gardens. We invite you to come see this exciting new addition to the Gardens when the New East Conservatory Plaza opens to the public on Saturday, October 9!

The finished wall welcomes guests to our new East Plaza

The finished wall welcomes guests to our new East Conservatory Plaza

Longwood’s East Conservatory Plaza Green Wall Facts:

Each 12” x 12” stainless steel panel contains a proprietary potting mix developed by Ambius for use in vertical gardens.

  • Among other ingredients are composted bark, coir fiber, and airlite – a lightweight expanded rock include for air space and drainage.

    A layer of Cocunut Coir fiber lines the inside of each panel

    A layer of coconut coir fiber lines the inside of each panel

  • Just inside the stainless steel, a layer of coconut coir fiber lines each panel to hold moisture.
  • Each panel is planted in one of 29 different planting configurations. Each configuration is based on plant type, lighting requirements, and other factors.
  • Each one of these 29 unique planting panels was given a code designation to identify its planting type and a numeric code to identify its exact wall location on the wall for installation.

Shipping the wall:

A small mountain of boxes awaits each panel for the journey to Longwood

A small mountain of boxes awaits each panel for the journey to Longwood

Getting the wall from Michael’s in Florida to Longwood Gardens in Pennsylvania relied on the acumen of Paula Engelman and Denise Eichmann of Ambius and Michael’s Shipping Manager Vivienne. Three tractor trailers were required to haul the shipment. The pre-taped cardboard boxes that were staged for assembly formed a small mountain in the warehouse.

Each panel was placed in a plastic liner and boxed with its code labeled on the outside.

The panel boxes were arranged on pallets in eight layers of nine boxes per layer, with cardboard placed every two layers to spread out weight. This made for an 8’ tall pallet that contained 72 boxes per pallet, for a total of over 50 pallets. Each pallet itself was shrink wrapped in plastic to hold it together.

The pallets went into climate-controlled refrigeration trucks set at 55°F on their 36 hour journey to Longwood.

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