Delicious, Delicious Orchids

Posted July 15th, 2009 by Marc Cohen
Categories: Fragrant Orchids, Photos, Warm Growers, Watering

You might laugh if asked if you eat orchids. So you’d probably be astonished to learn that you might be eating orchids everyday, possibly hundreds or even thousands of them. There could be orchids in your kitchen right now, and you might eat them at every meal. That’s because natural vanilla extract comes from the Vanilla orchid. Those little black specks in vanilla ice cream are orchid seeds, and part of the fascinating story of an unusual orchid.

The vast majority of orchids are not edible, but a few kinds are. Vanilla is, by far, the most valuable orchid food product. It’s also the only orchid that grows as a vine. There are dozens of different Vanilla species from tropical areas of the world, but the one that is usually grown commercially is called Vanilla planifolia. This plant is native to southern Florida, Mexico, the West Indies, Central America, and parts of South America. Originally cultivated by native peoples in Mexico, it’s now grown in many tropical areas around the world as a crop. The ancient Aztecs used it to spice up their chocolate drinks, and now it’s used in everything from ice cream to baked goods, and even for perfumes and tobacco flavoring.

Vanilla vine in Costa RicaVanilla flower and budsVanilla flower

While the flowers may look like Cattleyas, Vanillas are more closely related to Epidendrums. The flowers stay open less than a day, and are pollinated by hand when in cultivation. After pollination, seedpods start to form, taking as long as 9 months to mature on the vine. To develop their rich flavor, the seedpods are picked, dried, and cured, in a complex process that takes several months more. The difficulties of cultivation and curing make vanilla the second most expensive spice, after saffron. Madagascar and Indonesia are the world’s largest vanilla producers.

Vanilla vine in HawaiiVanilla vine growing up a tree in HawaiiVanilla vine growing up a tree in Hawaii

Healthy Vanilla vines are heavy and can stretch over 100 feet (30 m.) These tropical vines require warm temperatures and regular watering, so they’re not easy to grow at home. Commonly called vanilla beans, the dried and cured seed capsules are slender and brown. If you’ve ever used one in the kitchen, you know that when you cut it open, there are thousands of small black specks, which are the seeds. You can enjoy their delicious flavor and scent, but since they’ve been dried and cured, the seeds won’t grow. Synthetic substitutes for the flavor have been used for decades. In the USA, bottles labeled as “vanilla extract” are authentic orchid products, and bottles labeled as “vanilla flavoring” are artificial.

Variegated Vanilla vineVariegated Vanilla vine close-up

Vanilla vine in Costa RicaVanilla beans are dried and cured Vanilla seedpods

Whether you’re an orchid lover or a chef, there are plenty of reasons to love vanilla. I bet you’ll never look at a bowl of vanilla ice cream in the same way again.

Ghost Orchid

Posted July 11th, 2009 by Marc Cohen
Categories: Books, Fragrant Orchids, In the News, Orchids in the Wild, Warm Growers

The typically elusive ghost orchid, made famous in the bestselling book The Orchid Thief and the movie Adaptation, is readily visible for those near Naples, Florida. For decades, some orchid lovers have braved mosquito and alligator-infested swamps, only to leave disappointed without even a glimpse of the rare and unusual beauty. Now, a trip to the Audubon Corkscrew Swamp Sanctuary provides an easy way to see a great specimen blooming in the wild, all from the comfort of a public boardwalk. The sanctuary does recommend that you bring your binoculars, since the plant is high up in a tree. This bizarre orchid has stunning white flowers and no leaves (the chlorophyll is in the roots.) Although it is endangered in its natural habitat, ghost orchid plants which are legally grown from seed can be purchased from reputable vendors like this one.

Orchid Conservation Coalition

Posted July 8th, 2009 by Marc Cohen
Categories: Conservation

The Orchid Conservation Coalition (OCC) is a grassroots organization devoted to raising awareness and money for orchid conservation. The OCC directs donations to conservation groups all over the world, including those working in the Amazon and other orchid hotspots. As a coalition of individuals, orchid societies, businesses, and non-profits, the OCC provides vital support for protection of orchids. Some of their innovative programs include 1 % for Orchid Conservation and the Living Orchid Collection, and they also organize an expert speakers bureau.

Recently, the OCC celebrated a victory by helping the endangered Rosella Spider Orchid of Australia. After reading about the threat to this orchid on the OCC’s website, a philanthropist stepped forward with a large donation. Many more victories like this are needed around the globe. Individuals can support the OCC by volunteering, encouraging orchid societies and businesses to join their programs, and spreading the word about the urgent need for orchid conservation. The OCC also links to non-profit conservation groups which can accept donations directly.

Miltonidium

Posted July 5th, 2009 by Marc Cohen
Categories: Fragrant Orchids, Photos, Warm Growers

At an orchid show several years ago, I spotted a neglected plant on a back table for only $3. Since it had a flower spike starting to grow, it seemed like a great bargain to me, and I bought it. The orchid was this beautiful Miltonidium, which has bloomed repeatedly for me, so I definitely consider it a smart investment.

Miltonidium flowerMiltonidium flowersMiltonidium Hawaiian Sunset

This orchid is a hybrid, a human-made cross between a Miltonia and an Oncidium. Like all plant hybrids, it combines traits from both parents. With dozens of small, fragrant flowers, it also exemplifies “hybrid vigor.” The term hybrid vigor refers to the tendency of hybrid plants to be easy to grow and bloom, and also tough enough to survive difficult conditions. These characteristics make hybrids excellent choices for orchid beginners, since they are more forgiving of mistakes than species. Hybrids can also have larger, more frequent, and longer-lasting blooms.

Miltonidium flowerMiltonidium flowerMiltonidium flowers

This large spray of flowers may be a nice demonstration of hybrid vigor, but it also makes the orchid top-heavy and prone to tip over. I keep the plant within a heavy ceramic pot, and I’ve even tried to weigh it down with a rock on the flowerpot, but it can still topple. Even with some slightly bruised flowers, I couldn’t ask for a better bargain.

Miltonidium flowersMiltonidium Hawaiian SunsetMiltonidium Hawaiian Sunset flower spike

July Orchid Shows

Posted July 1st, 2009 by Marc Cohen
Categories: Events

From Chattanooga to Honolulu to Warrawong, orchid shows are a fun way to see beautiful tropical blooms, meet local orchid experts, and otherwise feed any orchid addiction. Don’t miss these great events taking place all over the globe.

July 3 – 4
Alfred County Orchid Society Show, Margate Methodist Church Hall, Margate, KwaZulu-Natal, South Africa
July 4
Southern Riviera Orchid Society Show, CWA Hall, Wason St., Milton, New South Wales, Australia
July 4 – 5
Blue Mountains and Penrith District Orchid Society Winter Show, Girl Guides Hall, cnr Great Western Hwy & Nepean St., Emu Plains, New South Wales, Australia
July 4 – 5
Cumberland Orchid Circle Show, Westfield ShoppingTown, North Rocks Rd, North Rocks, New South Wales, Australia
July 4 – 5
Shoalhaven Orchid Society Show, The Pavilion, Berry Showground, Victoria Street, Berry, New South Wales, Australia
July 5
Waikato Orchid Society Show, Hamilton Gardens, Cobham Drive, Hamilton, New Zealand
July 8 – 11
Illawarra District Orchid Society Show, Illawarra Yatch Club, 1 Northcliffe Drive, Warrawong, New South Wales, Australia
July 9 -11
Hawkesbury Orchid Society Show, WestPoint Blacktown, 17 Patrick St., Blacktown, New South Wales, Australia
July 9 – 11
Eastwood Orchid Society Show, Eastwood Shopping Centre, Rowe St., Eastwood, New South Wales, Australia
July 9 – 12
Campbelltown & District Orchid Society Show, Macarthur Square, Gilchrist Drive, Campbelltown, New South Wales, Australia
July 10 – 12
Baton Rouge Orchid Society Show, Baton Rouge Garden Center, 7950 Independence Blvd., Baton Rouge, Louisiana
July 10 – 12
Santa Barbara Orchid Estate International Orchid Fair, Earl Warren Showgrounds, Santa Barbara, California
July 10 – 12
Ewa Orchid Society Show, Ewa Elementary School, 91-1280 Renton Rd., Ewa, Oahu, Hawaii
July 11
North of England Orchid Society Show, Community Hall, Manchester Rd, Rixton With Glazebrook, Warrington, Cheshire, UK
July 11 – 12
Maribyrnong Orchid Society Winter Show, Randall St., Maribyrnong, Victoria, Australia
July 15 – 18
Fairfield and District Orchid Society Show, Fairfield Forum Shopping Centre, Station St., Fairfield, New South Wales, Australia
July 16 – 18
North Shore Orchid Society Show, Gordon Shpping Centre, Pacific Highway, Gordon, New South Wales, Australia
July 17 – 18
Eurobodalla Orchid Club Winter Show, CWA Hall, Queen St., Moruya, New South Wales, Australia
July 17 – 19
Kaimuki Orchid Society Show, Kalani High School, 4680 Kalanianaole Hwy., Honolulu, Oahu, Hawaii
July 17 – 19
New Zealand Orchid Society Winter Show, Mt. Albert War Memorial Hall, New North Rd., Mt. Albert, New Zealand
July 18
Hawke’s Bay Orchid Society Show, Clive Town Hall, Clive, New Zealand
July 18 – 19
11th Winter Miracles Orchid Show, B & T Ferns & Orchids, 30 Wiseman Road, Silvan, Victoria, Australia
July 20
Tennessee Valley Orchid Society Annual Picnic and Orchid Auction, River Park, Pavilion No. 3, off Amnicola Highway, Chattanooga, Tennessee
July 24 – 25
Batemans Bay Orchids & Foliage Society Show, Community Centre, Museum Place, Batemans Bay, New South Wales, Australia
July 24 – 26
Summer Orchid Fest, Parkside Orchid Nursey, 2503 Mountainview Dr., Ottsville, Pennsylvania
July 25
Maroondah Orchid Society Winter Show, Blackburn High School, Corner Springfield Road and Williams Road, Blackburn, Victoria, Australia
July 27 – Aug 1
Bankstown Orchid Society Winter Show, Bankstown Centro, South Terrace, Bankstown, New South Wales, Australia
July 30 – August 2
Mayaquez Orchid Society Show, Mayaquez Mall, 975 Hostos Ave., Mayaquez, Puerto Rico
July 31 – August 1
Phalaborwa Orchid Society Show, Bollonato Tourism Centre, Phalaborwa, Limpopo, South Africa

Orchids in the News

Posted June 27th, 2009 by Marc Cohen
Categories: Conservation, In the News, Orchids in the Wild

It’s always a pleasant surprise to find stories in the news about orchids, and lately I’ve seen a handful about native orchids blooming in Britain and North America. This recent article from the Times of London provides a great account of how native British orchids are thriving this year. Although less well-known than their tropical cousins, temperate orchids are fascinating in their own right, and many are just as beautiful as any showy Cattleya or Phal.

This article also provides insight into how poorly understood many of these temperate orchids are. Often, little is known about their precise growing requirements, or why they’re plentiful in one year and absent the next. Unfortunately, some overly-enthusiastic orchid growers can take an article like this as permission to do some local orchid hunting, and they return home with a plant yanked out of the ground, or some unusual cut flowers to sit in a vase. Sadly, this is one of the major dangers to the survival of these orchid species. Without the plant or the flower, the orchid cannot reproduce, and will soon perish. Plants that are removed from the wild for personal collections rarely survive, since even expert growers cannot duplicate the necessary natural conditions. All of these native orchids are also protected by law, and removing or damaging them is illegal. If you’re fortunate enough to spot a wild growing orchid, take away only pictures and memories, and leave nature to care for itself.

Reading Your Orchid’s Leaves

Posted June 24th, 2009 by Marc Cohen
Categories: Fertilizing, Problems, Watering

Orchids need healthy leaves to survive and thrive. If your orchid’s leaves look unhappy, take this list of common problems as a starting point to your diagnosis. Notice that some symptoms appear several times for different causes. For instance, certain signs of overwatering and underwatering are the same.

It helps to pay attention to the look and feel of your orchid’s leaves when the plant is healthy, so then you’ll have a good frame of reference to recognize a problem. While any one of these symptoms can indicate a problem, not every dark spot or yellow leaf is cause for concern. For example, older leaves (those lower on the plant) may yellow, develop spots, split down the middle, or fall off entirely. This is okay, as long as healthy new leaves are growing.

Overwatering
Mushy, wilted, limp, shrunken, or flattened leaves
Leaf split down middle
Yellow leaves
Leaves quickly turn soft and black
Underwatering
Wilted, limp, shrunken, or flattened leaves
Leaf has pronounced “ribs” or “veins”
Leaf split down middle
Edges of leaves curled under
Pleated leaves
Yellow or brown leaves
Sunburn or overheating
Large dried or dead spot on leaf; spot may start white and turn dark
Yellow leaves
Inadequate light
Yellow leaves
Dark green leaves
Leaves are floppy
Excessive fertilizer
Brown tips on leaves
Inadequate fertilizer
Yellow leaves
Low humidity
Brown tips on leaves
Wilted leaves
Allowing water to sit on leaves overnight
Mushy leaves
Needs repotting
New leaves turn to mush or turn black
Pests
Holes in leaves
Deformed leaves
Black spots
Leaves develop bronze color
Bacterial, viral, or fungal infections
Black spots or soft spots, especially those with an unusual smell
Streaks or patterns with discoloration
Yellow leaves
Cold water on leaves
Black spots

Orchis

Posted June 21st, 2009 by Marc Cohen
Categories: Cool Growers, Dormancy, Growing, Mini Orchids, Photos

If you’re welcoming today’s summer solstice by enjoying some time outdoors, it’s always a good idea to keep your eyes open for whatever surprises nature can offer. Some can be so petite that they’re easy to overlook, but I find it’s often worth the effort to be observant. Case in point: these delightful Orchis flowers, which span less than 3/4 inch (2 cm,) and sit atop tiny plants whose stems are only 2 inches tall (5.1 cm.)  This uncommon and unusual little charmer is native to Japan, where it grows in damp grasslands, mossy cliffs, and rock crevices. Its Japanese name means “butterfly wing orchid,” an apt description of the tiny blooms.

Orchis flowersOrchis flowers and budsOrchis flower and buds

With just a few narrow leaves on a stem, it looks more like a grass than an orchid. The mini plants emerge from small tubers in the spring, and can be grown like tulips or daffodils. I planted these in rich, sandy potting soil. In the fall, they’ll start to lose their leaves, and then go completely dormant for winter. Japanese growers have developed several color varieties, ranging from shades of purple to pink to yellow.

Orchis flower close upOrchis flower close up

Orchis flower and budsOrchis flower and plant

In case you’re wondering about the similarity of the name Orchis to the word orchid, it’s not just a coincidence. Relatives of this Japanese orchid live around the Mediterranean, and they were some of the first orchids known to ancient Greeks and Romans. Over time, as Europeans discovered more kinds of orchids, the Orchis genus lent its name to the entire orchid family.

More from the California Academy of Sciences

Posted June 17th, 2009 by Marc Cohen
Categories: Conservation, Fragrant Orchids, Misc, Photos, Warm Growers

Here are some more photos from the tropical rainforest exhibit at the California Academy of Sciences. The first set shows 2 kinds of Epidendrums. With fragrant green, white, and purple flowers, Epidendrum paniculatum is a common species found from Mexico and Belize south to Brazil and Argentina. There are several color varieties of this species throughout its large range. The last picture in this set shows a different Epidendrum species with a solid purple color.

Epidendrum flowersEpidendrum flowers

Epidendrum flowerEpidendrum flowers

I have several readers who are butterfly lovers, and I promised some more pictures. These stunning beauties were flying all over the exhibit, but they don’t sit still for long, so taking pictures is a challenge. There are 2 more shots of poison dart frogs, named because Amazon natives used poisons from the frogs’ skins on the tips of blowdarts. The colorful frogs are tiny, under 1 inch (2.5 cm) long. Most species are critically endangered because of habitat destruction, climate change, and pollution. The Academy of Sciences works for conservation of these frogs and many more rare species, including endangered orchids.

Tropical butterflyTropical butterfly

Costa Rican poison dart frogPoison dart frog from Madagascar

Here are even more butterflies. Along with the blue gecko in the last photo, they show a little tropical color from this amazing Academy of Sciences exhibit.

Tropical butterflyTropical butterfly

Tropical butterflyBlue lizard

Rainforest in a Bubble

Posted June 13th, 2009 by Marc Cohen
Categories: Conservation, Misc, Orchids in the Wild, Photos, Warm Growers

The California Academy of Sciences, located in San Francisco’s Golden Gate Park, is one of the world’s largest natural history museums. Among the many exhibits, the museum contains a remarkable 4-story rainforest housed in a dome. Inside the glass sphere, a spiral ramp allows visitors to explore the rainforest, starting on the ground and heading into the tops of the trees.

Visitors at the rainforest exhibitViewing the rainforest exhibit from different levelsView of 4 story glass dome with rainforest exhibit

This Rainforests of the World exhibit features the flora and fauna of Indonesia, Costa Rica, and Madagascar. It’s no surprise that orchids abound. Here are pictures of a few examples: a Phalaenopsis species, an unusual Calanthe orchid from tropical Africa, and a jewel orchid with fascinating leaves. All enjoy the constant warm temperatures and high humidity inside the dome.

Phalaenopsis flowerCalanthe flowersJewel orchid leaves

More than just a flower show, the exhibit provides an opportunity to see how orchids grow in the wild. The first photo in this next set shows how orchids grow as epiphytes, or air plants, along with bromeliads, ferns, and vines. By using their roots to hold on to trees, epiphytes take advantage of brighter light than they could receive on the shady forest floor. The 2nd photo shows an orchid attached to a branch. While some roots hold fast to the bark, others stick out in the humid air to catch moisture and nutrients. The 3rd photo shows orchids attached to a tree trunk. In the wild, the white roots hold on to the vertical surface, even in the face of strong winds and violent storms.

Air plants attached to tree branchOrchid growing on branchOrchids growing on tree trunk

That’s a small sample of the flora, and here are some of the fauna. Butterflies pollinate some species of orchids in the wild. These beauties paused long enough for our cameras. In the final photo, the bright colors of a poison dart frog advertise its bad taste to predators. They all play their parts in complex webs of life of tropical rainforests, and also this remarkable rainforest in a bubble.

Blue Morpho butterflyTropical butterflyCosta Rican poison dart frog