Arundina, an Orchid Weed

Posted March 4th, 2009 by Marc Cohen
Categories: Orchids in the Wild, Photos, Warm Growers

If you don’t live in the tropics, you may be surprised that this beautiful flower belongs to a pesky weed. If you live in a rainy area of the tropics, you probably recognize it. It’s Arundina, commonly known by its nickname “Bamboo Orchid.” The small plant in the 3rd photo shows the strong stems and pointy leaves that mimic bamboo with a flower on top.

Arundina flowerArundina flower and seedpodsSmall Arundina plant in bloom next to a parking lot

Originally from Southeast Asia, the Bamboo Orchid has spread throughout the tropics, and even to subtropical areas like Florida. In Hawaii where these pictures were taken, it was intentionally introduced in the 1950’s to grow as cattle fodder. On the east side of the Big Island, we saw it growing in fields and forests, along roadsides, and even next to parking lots. It’s also one of the first plants to start growing on new lava fields. In fact, it’s such a prolific grower that Hawaiian locals use it as green filler for flower bouquets instead of ferns. There were buckets of the tall green plants at local farmers markets.

Arundina flower and budSide view of Arundina flower and seedpodsArundina plants with purple Spathoglottis orchids in front

Bamboo orchids usually grow as terrestrials in soil, and can grow quite tall. We routinely saw 6 ft (1.8 m) plants, with some as tall as 10 ft (3 m.) The final picture shows a common sight along the roads near Hilo, with white and purple Arundina flowers sticking above the tall grasses. Call it a weed if you must, but at least it has a pretty flower.

Arundina flowerArundina flowers among roadside vegetation

March Orchid Shows

Posted March 1st, 2009 by Marc Cohen
Categories: Botanical Gardens, Events

I said that March was a busy month for orchid shows, and I wasn’t kidding! This is only a partial listing of shows around the world, from here in San Francisco to Atlanta, Buenos Aires, and Costa Rica. The Philadelphia Flower Show, while not specifically an orchid show, is the largest flower show in the world, and definitely worth a visit if you’re in the City of Brotherly Love.

March 1 – 8
Philadelphia Flower Show, Pennsylvania Convention Center, 100 N. 20th St., 5th Floor, Philadelphia, Pennsylvania
March 6 – 8
San Francisco Orchid Society Pacific Orchid Exposition, Fort Mason Center’s Festival Pavilion, San Francisco, California
March 6 – 8
Victoria Orchid Society Show, University of Victoria, Student Union Building, Victoria, British Columbia, Canada
March 7
Mid-Hudson Orchid Society Show and Sale, Union Presbytarian Church, corner of Balmville Road and Beech Street, Newburgh, New York
March 7 – 8
South Bay Orchid Society Show, Torrance Cultural Arts Center, 3330 Civic Center Dr., Torrance, California
March 7 – 8
Greater Akron Orchid Society Show, Donzell’s Flower and Garden Center, 937 E. Waterloo Rd., Akron, Ohio
March 7 – 8
Cayman Islands Orchid Society Show, Queen Elizabeth II Botanic Park, 367 Botanic Rd. North Side, Grand Cayman Islands
March 7 – 16
Taiwan International Orchid Show, Taiwan Orchid Plantation, 31 Sheng Li 1st Street, Rende Shiang, Tainan Hsin, Taiwan
March 10 – 15
Puerto Rico Orchid Society Show, Plaza las Americas, San Juan, Puerto Rico
March 12 – 15
Maryland Orchid Society Show, Timonium Fair Grounds, 2200 York Rd., Timonium, Maryland 
March 13 – 15
San Diego County Orchid Society Show, Scottish Rite Center, 1895 Camino Del Rio South, San Diego, California 
March 13 – 15
Fairchild Botanic Garden International Orchid Show, Fairchild Tropical Botanic Garden, 10901 Old Culter Rd., Coral Gables, Florida 
March 13 – 15
San Joaquin Orchid Society Show, Sherwood Mall, 5950 Pacific Ave., Stockton, California
March 13 – 15
Atlanta Orchid Society Show, Atlanta Botanical Gardens, 1345 Piedmont Ave. NE, Atlanta, Georgia 
March 13 – 15
38 Exposición Nacional De Orquídeas, Asoc. Costarricense de Orquideologia, Ncofer (Pacific Train Station,) San Jose, Costa Rica 
March 13 – 15
Tampa Bay Orchid Society Show, Bayanihan Arts and Events Center, 14301 Nine Eagles Dr., Tampa, Florida 
March 14 – 15
Orchid Society of Nova Scotia Show, Spring Garden Place, 5640 Spring Garden Rd., Halifax, Nova Scotia, Canada 
March 14 – 15
Cherry City Orchid Society Show, Capital Manor Community Center, 1955 Dallas Highway, Salem, Oregon
March 14 – 15
Northeastern Wisconsin Orchid Society Show, Holiday Inn Neenah Riverwalk, 123 E. Wisconsin Ave., Neenah, Wisconsin 
March 14 – 15
Denver Orchid Society Show, Tagawa’s Garden Center, 7711 S. Parker Rd., Centennial, Colorado 
March 20 – 22
Santa Barbara International Orchid Show, Earl Warren Showgrounds, Santa Barbara, California 
March 21 – 22
RHS London Orchid Show 2009, Lawrence Hall, Greycoat Street, London SW1, UK 
March 21 – 22
Jacksonville Orchid Society Show, Garden Club of Jacksonville, 1005 Riverside Ave, Jacksonville, Florida 
March 21 – 22
Greater Omaha Orchid Society Show, Lauritzen Gardens, 100 Bancroft St., Omaha, Nebraska 
March 21 – 22
Orchid Society of Western Pennsylvania Show, Phipps Garden Center, 1059 Shady Ave., Pittsburgh, Pennsylvania 
March 21 – 22
Illinois Orchid Society Show, Chicago Botanic Garden, 1000 Lake Cook Rd., Glencoe, Illinois 
March 21 – 22
Barbados Orchid Society Show, Barbados Horticultural Society Hdqts., Balls, Christ Church, Barbados
March 21 – 22
London Orchid Society Show, North London Optimist Community Centre, 1345 Cheapside Street at Highbury, London, Ontario, Canada
March 25 – 29
Amigos de las Orquideas de Argentina Show, Jardin Japones de Buenos Aires, Avda Figueroa Alcorta y Avda. Casares, Buenos Aires, Argentina
March 26 – 29
Manitoba Orchid Society Show, Assiniboine Park Conservatory, 15 Conservative Dr., Winnipeg, Manitoba, Canada
March 27 – 29
Naples Orchid Society Show, United Church of Christ, 5200 Crayton Rd., Naples, Florida
March 27 – 29
Alamo Orchid Society Show, San Antonio Garden Center, 3310 N. New Braunfels, San Antonio, Texas
March 27 – 29
Jamaica Orchid Society Show, Royal Botanic Gardens at Hope, Kingston, Jamaica
March 27 – 29
Southeastern Pennsylvania Orchid Society Show, Longwood Gardens, 901 Conservation Rd., Kennett Square, Pennsylvania
March 27 – 29
Windward Orchid Society Show, Samuel Wilder King Intermediate School, 46-155 Kamehameha Hwy., Kaneohe, Oahu, Hawaii
March 27 – 29
St. Thomas-St. John Orchid Society Show, Holiday Inn Windward Passage Hotel, Charlotte Amalie, Virgin Islands
March 27 – 28
Garden Island Orchid Society Show, Hanapepe UCC Church Hall, Hanapepe, Kauai, Hawaii
March 28 – 29
Spokane Orchid Society Show, Southside Senior Activity Center, E. 3151 27th Ave., Spokane, Washington
March 28 – 29
Illowa Orchid Society Show, Putnam Museum and IMAX Theater, 1717 W 12th St., Davenport, Iowa
March 28 – 29
Les Orchidophiles de Montreal Show, CEGEP de Maisonneuve, 2700 Bourbonniere, Montreal, Quebec, Canada
March 28 – 29
Napa Valley Orchid Society Annual Exhibit and Sale, Napa Senior Activity Center, 1500 Jefferson St., Napa, California

New York Botanical Garden Orchid Show

Posted February 27th, 2009 by Marc Cohen
Categories: Botanical Gardens, Events

The New York Botanical Garden Orchid Show starts tomorrow for its 6-week run, February 28 – April 12. This year the theme is Brazilian Modern, and showcases contemporary Brazilian design and plenty of orchids from Brazil. The show will include other tropical plants native to Brazil, educational programs, and a show for kids called “Chocolate and Vanilla Adventures.”

In case you don’t have the opportunity to be in New York soon, take heart. March is loaded with orchid shows throughout the world, and I’ll have an extensive listing in my next post. It’ll include some of the year’s largest and most amazing shows in Santa Barbara, London, Taiwan, Montreal, and of course, San Francisco. Don’t worry– we’re already warming up the cameras.

Malaxis

Posted February 24th, 2009 by Marc Cohen
Categories: Intermediate Growers, Mini Orchids, Photos

Jewel orchids are a fascinating group of plants that are grown for their beautiful foliage. Usually, mention of their colorful leaves includes a statement that the flowers are uninteresting. I always find that an amusing statement, but maybe I’m biased as an orchid geek that all orchids are interesting. I do believe that this mini jewel orchid, a Malaxis, proves my point. Its flowers look more like a tiny yellow bug than an orchid. The little blooms are less than 1/4 inch (6 mm) wide, and open in succession along a lengthening flower spike. The first picture shows the flower spike with unopened buds.

Malaxis flower spikeMalaxis flowers and flower spikeMalaxis flowers

I bought this unusual orchid a couple years ago, and set it in a shady spot. It grew well for a few months, and then started dropping its leaves. Soon it was down to a single leaf, and I was ready to sacrifice it to the compost. In a last-ditch attempt to save it, I placed it in my terrarium, which has constant high humidity. Instantly it perked up, and over the next few months it grew more leaves. Finally it’s rebounded well enough to bloom. Moral of the story: high humidity is essential for this orchid, since its thin leaves dry out quickly.

Malaxis flowersMalaxis flower

The pictures below show the beautiful iridescent bronze leaves and bright pink stem that make this a gorgeous plant, even when it’s not in bloom. I’m certainly not denying that the plant is beautiful, but I don’t think that makes the flowers any less interesting.

Malaxis flower spike and leavesMalaxis leaves and stem

Growing Orchids in Your Garden

Posted February 20th, 2009 by Marc Cohen
Categories: Books, Orchids in the Wild

Growing Orchids in Your Garden

Okay, so you’ve been seriously bitten by the orchid bug, and you’ve acquired so many that you’ve run out of room to grow any more. A reasonable person would maintain their hobby at a manageable level. But with orchids, why be reasonable when you have the opportunity to expand your hobby outside? Growing Orchids in Your Garden, by Robert G. M. Friend, is the guide for you. Whether you live in Puerto Rico or Canada, the UK or Australia, there are orchids you can grow outdoors for at least part of the year. This clearly written and beautifully illustrated book will show you how.

Even if you don’t plan on replacing the lawn with Cymbidiums, you can still learn a lot by understanding how orchids grow in the wild. Friend explains how epiphytic orchids grow as air plants, how lithophytic orchids grow as rock plants, and how terrestrial orchids grow in the ground. There are concise instructions for each variety, and a great extensive table of recommended orchid species in the back of the book. In case you think your climate is too cold for orchids, there are plenty of varieties from cold regions, like Bletilla and Calanthe, that are deciduous and go dormant in the winter.

You may be surprised to learn how many orchids are easy to grow in your own backyard. So if you think your garden is impressive now, just wait until you fill up that rock wall with Dendrobiums and Laelias.

The Gift Orchid

Posted February 15th, 2009 by Marc Cohen
Categories: Growing, Photos

Valentine’s Day means roses and chocolates for many people, but they’re not the only holiday gifts. If you received an orchid as a gift for Valentine’s Day, you may be wondering how to properly care for it. It will help to first identify it so that you can know its specific needs. It’s usually not necessary to find the exact name, but instead to know what family of orchids it comes from. That way you can understand the growing conditions that will help it thrive and bloom again.

The most common kind of orchid sold is the Phalaenopsis, or Moth Orchid. If the shape of your flower looks like the picture below, then that’s probably what you have. Remember that they come in many different colors and patterns, so it’s the shape of the flower that really helps in identification.

Phalaenopsis flower

If you can’t identify your orchid, start with these basic care tips:

  • Light – Give orchids bright light, but no direct sun.
  • Water – Water them thoroughly once or twice a week — more when it’s warmer, less when it’s cooler. Make sure the water drains completely out of the holes at the bottom of the pot. Never leave the plant sitting in water!
  • Fertilizer – Add diluted plant fertilizer when they are growing.
  • Air movement – Provide gentle air circulation for the plant.
  • Humidity – Provide some humidity for the plant; orchids do not like dry environments.
  • Proper temperatures – Keep the daytime temperature between 65°- 75°F /18°- 24°C, and a few degrees cooler at nighttime.

Good luck with your Valentine’s gift! Meanwhile I’m getting back to my chocolates…

Darwin’s Orchid

Posted February 12th, 2009 by Marc Cohen
Categories: Botanical Gardens, Fragrant Orchids, Misc, Photos, Warm Growers

In honor of Charles Darwin’s 200th birthday today (by the way, he was born the exact same day as Abraham Lincoln!) I have some remarkable pictures of “Darwin’s Orchid.” This stunning orchid has a long scientific name, Angraecum sesquipedale. Easier to pronounce is its nickname, Darwin’s Orchid, so named since it played an important role in the development of the theory of evolution. I was thrilled to find this exquisite specimen in bloom at Hawaii Tropical Botanical Garden last month. Although it was up in a tree and difficult to see, Dave’s superb photography brings us up close.

Angraecum sesquipedale flower close-upAngraecum sesquipedale flower

Darwin was fascinated by orchids, and tried to understand how they evolved to attract a single insect or bird species to pollinate them. This orchid presented a particular challenge for Darwin, since its flower can have a 14 inch (35 cm) nectar tube. Darwin theorized that somewhere in the jungles of Madagascar, there was a moth with a very long tongue capable of reaching the bottom of the nectar tube, and which was the pollinator of this orchid species. He was ridiculed for the outrageous suggestion, but the predicted moth species was discovered in 1903, proving him correct and adding compelling proof to evolutionary theory.

Pictured below are an open flower and an unopened bud positioned back to back. Dave worked some computer magic to make the flower and nectar tube really stand out against a black and white background.

Angraecum sesquipedale flowers side viewAngraecum sesquipedale flowerAngraecum sesquipedale flower B/W

I estimated, using the picture with my hand, that the nectar spur on this flower is a respectable 10.5 inches (27 cm) long. That’s still 3.5 inches (9 cm) short of the maximum length this species can achieve for just one segment of the flower. The final shot shows part of the Angraecum plant itself on the right, looking like a Vanda plant, while its roots hold on to a palm tree trunk. This remarkable orchid is a fitting birthday tribute to Darwin’s profound contributions to modern science.

Angraecum sesquipedale flower with measureAngraecum sesquipedale flowers and plant

Orchids on a Volcano

Posted February 9th, 2009 by Marc Cohen
Categories: Misc, Photos

In the town of Volcano on the road to Hawaii Volcanoes National Park, Akatsuka Orchid Garden has one of the aloha state’s largest orchid collections. We couldn’t resist a trip to their store and showroom, and found ourselves there with busloads of tourists who had just visited nearby Kilauea Volcano.

Phalaenopsis Maki WatanabeCymbidium Maureen CaterDendrobium Tropic House

Many of these spectacular hybrids are award-winning varieties grown by Akatsuka. While these pictures can convey a few of the thousands of flowers, they cannot convey the wonderful smells throughout the large showroom. Some of these orchids had strong, sweet scents, and they perfumed the air during our whole visit.

Cattleya Chocolate Drop flowersCoelogyne Black Orchid flowersPotinara flower

Besides lots of flowers, we enjoyed seeing how this large commercial greenhouse was set up. The final 2 pictures below show orchids on greenhouse benches, and spray misters that help maintain high humidity. In addition, there’s a gift-shop with all sorts of orchid goodies, from books to t-shirts to fridge magnets, for those who want souvenirs that don’t require light and water.

Zygonisia flower and budCattleya flowers on greenhouse benchOrchids and spray misters

Hawaii Tropical Botanical Garden, redux

Posted February 6th, 2009 by Marc Cohen
Categories: Botanical Gardens, Orchids in the Wild, Photos, Warm Growers

We have so many great pictures from Hawaii Tropical Botanical Garden that I couldn’t fit them into just one post. So here are a few more orchids photos:

Epidendrum flowersCattleya flowersDendrobium flowers

And here are a few more non-orchid photos:

Heliconia flowersColorful tropical leavesIndonesian Ginger

And here are some great examples of how orchids grow in the wild. In the tropical rainforest, orchid roots hold on to tree trunks and branches so they can take advantage of brighter light above the forest floor. In the last picture, a Phalaenopsis seems to defy gravity holding on to a vertical surface, a mossy tree trunk.

Orchids growing on palm tree trunkOrchids growing on palm tree trunkOrchid growing on tree trunk

Hawaii Tropical Botanical Garden

Posted February 3rd, 2009 by Marc Cohen
Categories: Botanical Gardens, Conservation, Photos, Warm Growers

While we were visiting the Big Island of Hawaii, Dave and I took a trip to Hawaii Tropical Botanical Garden. Located north of Hilo in a real tropical rainforest, the garden is a lush paradise of exotic plants from rainforests around the world, including lots of orchids.

Cattleya flowersPhalaenopsis flowers
Bulbophyllum flowersChocolate-scented Oncidium flowers

We spent half the day soaking in the stunning floral beauty. Innumerable tropical flowers, a koi pond, waterfalls, jungle birds, and ocean vistas kept our cameras clicking away. The garden is a non-profit sanctuary for many rare plants, helping to preserve them against the threats of habitat destruction and climate change. Hawaii Tropical Botanical Garden also provides educational programs, and spreads Hawaiian beauty by shipping tropical flower bouquets within the USA.

Cattleya flowersPhalaenopsis flowersBrassolaelocattleya flowers

And to prove that we actually did take pictures besides orchids, below are a baby pineapple, a pink ginger flower, and a yellow heliconia flower. In the last photo, Onomea Falls rushes through the garden valley. What a paradise!

Young pineapplePink ginger flowerBrazilian heliconiaOnomea Falls