Posts filed under ‘Collections’
The sight of fresh blooming encyclias is one to tease the eyes. Generally small flowered and often less than an inch in diameter, encyclias pack a punch with their unending shape and color variations. Orchid lovers could spend days observing these species and hybrids. This hardly comes as a surprise when you take into consideration that there are over 150 species in the genus.
Originating from the Greek word, enkylein, the name encyclia refers to the way the lateral lobes of the flower encircle the column. Found from central Florida to Brazil, these orchids grow in warmer climates and produce psuedobulbs in clumps. Each clump sends up several flower spikes at a time and each variety of encyclia has flower spikes that range in a length from a foot to several feet long. Since each spike can produce many flowers these spikes make for quite a spectacular show.
I find these orchids very pleasing to observe. Their small flowers make them manageable to view, but contain subtle details that are a delight to discover. These flowers have great depth to them, so changing your angle of view can reveal more interesting characteristics.
Encyclias are often crossed with the genera Cattleya and Epidendrum to create lovely hybrids. Encyclias are desirable for their interesting flower shapes and Encyclia cordigera in particular often is selected for hybridization for its darker colors and intoxicating aroma. Encyclia cordigera has received over 40 awards from the American Orchid Society, so why not pass along some of these winning characteristics to other orchids?
In the Smithsonian Gardens Orchid Collection, there are currently over 60 examples of these encyclia species and hybrid combinations. Their flowers last up to a month sometimes longer, so they regularly make their way to the display cases in museums around the Smithsonian. Be sure to swing by the orchid cases downstairs in the National Museum of American History sometime in the next few weeks to see one of these incredible orchids on display.
– Alan Marcus, Smithsonian Gardens Orchid Intern
The Smithsonian Gardens’ tropical plant collection includes approximately 1,000 plants. This number fluctuates on a fairly regular basis as some plants die from natural causes while others grow so large that they outgrow their display space or even the Smithsonian Gardens’ greenhouse facility. As the caretaker of this collection, I have a special relationship with the plants and, though I care for them all, I do have a few favorites. Here is a list of my personal top 5 favorite plants in the Smithsonian’s tropical plant collection (in no particular order) along with where to catch them on display this summer.
First up is Caladium schomburgkii ‘Skula.’ This relatively unknown caladium is subtle, but for some reason is a favorite of mine. Could it be the interesting leaf shape, or perhaps its various hues of green leaves, or simply its ease of care? I honestly don’t know why I like this plant so much but see for yourself and make your own decision. Location: Enid A. Haupt Garden
Once you see Aristolochia gigantea ‘Brasiliensis’ flowers you will know why this tropical made my top 5 list. It took me a few tries to cultivate this plant. I previously obtained two specimens and both times when they flowered they ended up being straight A. gigantea. My third attempt was well worth the trouble, however. This plant produces flowers nearly year-round and what a display they make! The flowers measure nearly 12 inches wide and before opening they have a fascinating side profile that resembles a smoking pipe. Aristolochia ridicula was close to making my list as well (check out its flowers). Location: Mary Livingston Ripley Garden
Dioscorea mexicana, also called Mexican Yam, is one of the coolest looking plants you will ever see. The plant’s caudex (stem base) looks like a tortoise shell. The glossy heart-shaped leaves are attractive and can grow 15 feet in a single growing season. While pretty, the flowers are small so it’s best to enjoy this plant for its foliage and oh so interesting caudex. Location: Enid A. Haupt Garden
Combretum indicum ‘Flora Plena,’ the second vine on my list, is certainly a show stopper. This doubled flowered cultivar is not only visually breathtaking but also pleasantly fragrant. The flowers start out white and as they age change over to various hues of pink and red. Location: Enid A. Haupt Garden
Alsobia dianthiflora is also known by its common name, Lace Flower. A simple plant with fuzzy green leaves and a dark midrib, it looks nice year-round but really shines when it’s shredded-edged white flowers start to bloom. This plant also makes for a great house plant. Location: Enid A. Haupt Garden
A bonus plant to add to this list is expected to make its appearance in the Smithsonian Gardens during the summer of 2016 or 2017. Encephalartos horridus is an amazing blue cycad. I acquired a small offset in the fall of 2012 and have been caring for it ever since. The International Union for Conservation of Nature lists this plant as Endangered. It is native to South Africa. E. horridus has spectacular blue fronds that make it a truly special specimen.
So there you have it–my current top 5 plants under my care here at Smithsonian Gardens. I hope you enjoy them as much as I do and please stop by our gardens and check them out in person if you have a chance.
– Matt Fleming, Smithsonian Gardens Horticulturist
Gardens are not only places for flowers, trees, and vegetation to grow. Insects such as ladybugs, bees, and butterflies, have an important role in our garden as well. These pollinators propagate flowers and vegetables to keep our gardens flourishing. They are so important to the survival of plants that gardeners have been known to create “homes” for these critters. Bees and wasps use insect houses to keep prey for eggs that have been deposited, while butterflies and ladybugs use them as a place to hibernate.
The Archives of American Gardens includes terrific images of insect homes. The style and size of insect houses vary just like the houses in which we live. The design of a house depends on the type of bug a gardener may want in his or her garden. For example, the size of the nesting holes drilled into the walls of an insect house influence the type of bug likely to dwell inside. The butterfly houses shown here were constructed in an elongated shape with vertical slits running up and down the sides. Butterflies must fold up their delicate delicate wings in order to fit into these narrow openings. Once inside the insect house provides the butterflies with excellent protection from wind, weather, and predators.
It is immediately apparent how the holes in this bee house vary greatly from those used by butterflies. Round holes provide bees easy entrance to the house. Unlike bee hives, bee houses are meant to attract solitary bees, such as the Mason Bee (Osmia rufa). This explains why there are multiple holes created in the house rather than one large opening like a bee hive would have.
To learn more about pollinators, attend the upcoming Pollination Party at the Smithsonian Gardens Butterfly Habitat Garden on Tuesday, June 16. The Pollinator Party will highlight the Pollinator Partnership’s mission to promote the health of pollinators–which are critical to food and ecosystems–through conservation, education, and research. Click here for more information about Smithsonian Gardens’ Pollinator Party.
– Melinda Allen, Archives of American Gardens intern
Happy Arbor Day! My name is Carpinus betulus ‘Fastigiata’, or columnar European Hornbeam. I feel right at home here at the National Air and Space Museum as all the rockets in Gallery 114 look a lot like….me! The name fastigiata comes from the Latin word meaning “soaring”. While I’ll never reach the moon, I will reach 40 feet tall. My fall color is fiery yellow and orange, and my bark is grey and muscular-looking.
Here are a few snapshots from my planting this morning. It’s a pleasure becoming the 1901st addition to the Smithsonian Gardens Tree Collection, and I hope to enjoy many years at the Smithsonian!
Click here learn more about Smithsonian Gardens and the Tree Collection.
For tips on how to choose the right tree and plant it, check out these tips on proper tree planting techniques from the Smithsonian Gardens Green Team.
There are few orchids as unusually delightful and whimsical as the genera Gongora, Stanhopea, and Coryanthes in family Orchidaceae. Largely distributed through the neotropics, these genera are closely related under the subtribe Stanhopeinae. Though they share a similar way of enticing pollinators to visit their flowers, each of these orchids offer something unique as well.
Gongora, Stanhopea, and Coryanthes all attract euglossine bees to pollinate their blooms by producing highly aromatic oils on their flowers. Male euglossine bees, drawn by the intense fragrance, land on the flowers, scrape up the scented oil, and then collect it in spongy pouch-like structures on their back legs. It is believed that the male bees use this behavior is to help attract mates. The more complex the aroma compounds a male bee creates by visiting multiple flowers, the more attractive he appears to female bees.
Transferring collected oils onto its back legs requires a male euglossine bee to release its grip on a flower momentarily. Rather amazingly, these three genera of orchids have each developed a way to capitalize on this moment of vulnerability. Gongoras and Stanhopeas orchids use a “slide” structure formed from the petals and dorsal sepal of each bloom to guide the upside-down tumbling bee past the pollen on the end of the column and out of the flower. It’s nature’s version of “Chutes and Ladders!”
Coryanthes or Bucket Orchids, on the other hand, trap their bee visitors in liquid pooled in the bucket-shaped lip of their flowers. With its wings submerged, a male bee must exit out back of the bucket and past the column containing the pollen to escape the flower. In the process pollen from the flower attaches to the bee’s back. Since this is a traumatic experience, the bee temporarily avoids similar flowers. Eventually, the bee forgets the experience and falls into the same trap on another flower. The pollen already attached to its back then is deposited in the appropriate place on the flower’s column before new pollen adheres to the bee. Unbelievable, right?
Although flower spikes in all three species extend and hang pendulant from the base of the psuedobulbs, the more interesting phenomenon is that all three develop inverted flowers. This adaptation guides the fall of the visiting bee downwards through each orchid’s respective structure to help pollinate the plant.
Though similar in many ways, each genus exhibits a radically different shape. Below is a photo of Gongora aff. quinquenervis from the Smithsonian Garden Orchid Collection. The flower shape is fairly representative of the Gongora genus as a whole and makes for a great model to understand the pollination process. Some say Gongora tend to look like a bird or insect in flight because of its wing-like reflexed lateral sepals. What strikes me in this particular species, however, is its jaggedness and the small barbs coming off the lip. The barbs remind me of a fishing hook with a lure. Considering how the flower uses its structure to attract a pollinator, it’s actually not a bad analogy
Stanhopea jenischiana, most recognizable for the dark eye spots on its yellow lip (see below), pollinate very similarly to Gongoras via a “slide” method. The fall bees experience after entering the flower led these orchids to be nicknamed “Fall-Through” Orchids.
And finally, below is Coryanthes trifoliata. Though the lateral sepals unfortunately are past their peak in this photo, the bucket lip is still intact and shows off some this bloom’s stunning detail! Notice the liquid dripping into the flower’s bucket. The second image shows more clearly the channel through which the orchid forces visiting bee to escape.
While these fantastic orchids abound in the Smithsonian Gardens greenhouses, a few have made their way into the Orchids: Interlocking Science and Beauty at the Smithsonian National Museum of Natural History over the past several months. Have you had a chance to see any of them? With the show closing this Sunday, April 26 there’s still time to see a few new additions including a Gongora! Don’t miss them!
– Alan M., Smithsonian Gardens Orchid Exhibition Intern
We are a nation of gardeners. Thomas Jefferson grew over 300 varieties of plants at his Monticello home and like any dedicated gardener kept meticulous records detailing the triumphs (and failures) of his adventures in gardening. In the nineteenth century Italian immigrants introduced new vegetables like artichokes to the United States. Today, heirloom seeds originating from around the globe—or grandma’s backyard—can be purchased online and grown wherever we make a home. The Smithsonian Gardens Victory Garden at the National Museum of American History tells a story of citizens feeding their communities during wartime years, as well as a story of the diverse cultures that comprise the American people. In the summer ‘Carolina Gold’ rice, a traditional crop from the Carolina Lowcountry, can be found growing only a few feet from ‘Corbaci’ sweet peppers, a hard-to-find heirloom from Turkey.
April is National Garden Month, and we are celebrating the diversity of American gardens and the gardeners who make them grow. Small gardens and large gardens, community gardens and backyards, our diverse stories are part of a verdant quilt of gardens growing across the country. Gardens tell us where we’ve been, and where we are going. They can tell us stories about how people in our communities lived in the past and articulate our cultural values in the present. So often our everyday stories—the dahlias bred by a great-uncle, the nursery owned by a family for generations, the hot peppers grown as a reminder of a faraway island childhood—are lost to the historical record, and therefore lost to future generations.
Community of Gardens is our answer to the call to preserve our vernacular garden heritage. Community of Gardens is a digital archive hosted by Smithsonian Gardens, in partnership with our Archives of American Gardens, and created by YOU. It is a participatory archive that enriches and adds diversity to the history of gardening in the United States and encourages engagement with gardens on a local, community level. The website uses a multimedia platform that supports images, text, audio, and video. Visitors can add their own story to the digital archive, or explore personal stories of gardens from around the country.
To contribute a story to the digital archive visit the “Share a Story” page on the Community of Gardens website to sign up for an account. Once you have set up your account you may then add a written story and photographs. If you’d like to add video or audio files to your story email them to firstname.lastname@example.org. You will hear from a Smithsonian Gardens education staff member within a few days, and your story will be posted on the website usually within 3-5 business days. Once you have shared a story, share another story, or encourage your friends and neighbors to do the same!
We are looking for any story about gardens and gardening in America—even stories of Americans gardening abroad. Here is just a sampling of the stories we are looking to include in Community of Gardens:
- What’s growing in your own backyard, or on your apartment balcony? What motivates you to garden and how did you get your start? How does gardening enrich your everyday life?
- Interview a neighbor or family member about their garden.
- Memories of gardens past. Do you have strong memories of your grandparents’ garden, or visiting a public garden that no longer exists? Gardens can live on in stories and images through the archive.
- Family history. This is a good opportunity to get out the photo albums and scan old family photographs. Are you a fourth-generation gardener like Paul, pictured above?
- Community gardens—past and present.
- Did you immigrate to the United States from another country? How do your traditions and culture play a role in your garden?
- College and university gardens.
- School gardens. Involve your students in telling the story of their garden!
- Pollinator gardens and beekeeping.
- Americans gardening abroad. Are you a veteran or member of the Foreign Service? Did you keep a garden while living abroad? How did living in another country influence your garden?
- Sustainability and eco-friendly gardening.
- Stories of gardens committed to providing food access in urban areas.
Join us in preserving our national garden heritage—this month and every month. What is your garden story?
-Kate Fox, Smithsonian Gardens educator
From One Flower to Many and Some In Between: What’s Blooming in the Smithsonian Gardens Orchid Collection
Orchids come in an incredible variety of shapes, sizes, and number of blooms. This week’s “What’s In Bloom” looks at some of unique plants in the Smithsonian Gardens Orchid Collection that highlight the impressive diversity of the Orchidaceae family. From large, single-flower plants to plants with spikes full of tiny blooms; these species are awe-inspiring!
Pictured above is Phragmipedium longifolium with its large, roughly eight inch bloom on display. This orchid is native to the costal and mountain regions of Ecuador and into Latin America. The beautiful thing about Phrag. longifolium is that while only one flower may be in bloom at a time, it’s possible for mature orchids to produce blooms year round under ideal conditions. This makes the orchid very popular and many hybrids are made with this species as one of the parents.
Located in the same global region as Phrag. longifolium, Mormolyca rigens displays much smaller, one inch flowers. Unlike Phrag. longifolium, when Morm. rigens blooms many flowers pop out all over the orchid, capping the ends of thin growing shoots. Morm. rigens is also able to maintain bloom most of the year. This orchid is particularly attractive to bees who, lured by its shape and coloring, pollinate the flower by trying unsuccessfully to mate with it.
Dendrobium speciosum is suited for prolific reproduction in the wild. It produces many, many fragrant blooms on just a single vegetative spike. While the blooms pictured here are conveniently located in the Smithsonian Gardens’ greenhouses, in the wild Den. speciosumis is commonly found throughout Australia. This plant showcases white flowers with purple-spotted, red-veined labellums, but there are many variations of this orchid in the wild because its pollen readily crosses with other Dendrobium species. With upwards of two hundred and fifty flowers opening synchronously on one stalk, this orchid releases an incredibly aromatic scent to attract potential pollinators from all directions.
Regardless of if an orchid blooms with one large flower, many tiny flowers, or anything in between, the incredible variety of this family is always a pleasure to view.
– Alan M., Smithsonian Gardens Orchid Exhibition Intern