Tiger Orchid

Posted November 18th, 2011 by Marc Cohen
Categories: Botanical Gardens, Fragrant Orchids, In the News, Warm Growers

A tiger is taking over the Brooklyn Botanic Garden! Native to rainforests of Southeast Asia, the Tiger Orchid makes a big impression. Grammatophyllum speciosum is the world’s largest orchid. This tropical species can grow as heavy as 2 tons (1.8 metric tons,) and believe it or not, it’s an air plant. The Brooklyn specimen has burst into bloom, just the third time in 13 years. Checking in at 300 pounds (136 kg) and 12 feet (3.7 m) wide, it has 17 flower spikes, each with scores of blooms. Its 4 inch (10 cm) yellow flowers have reddish brown spots, giving the plant its feline nickname. Visit the Brooklyn Botanic Garden within the next month to appreciate the full size of this jungle creature, and to enjoy hundreds of its fragrant blossoms.

20th World Orchid Conference

Posted November 16th, 2011 by Marc Cohen
Categories: Events, In the News

Forgot to renew your passport? Missed your flight to Singapore? Don’t worry — you can still experience the ongoing 20th World Orchid Conference. The event known as the “Orchid Olympics” began last Sunday, November 13th, and runs until this Sunday, November 20th. You can start by exploring the wonderful photography of a local blogger. His first post, “A sneak peek at the Gardens by the Bay,” is a fabulous photo tour of Singapore’s new Flower Dome conservatories. They’re still under construction, but open for a special preview during the conference. They hold lots of beautiful orchids, along with other fascinating plants from around the world (check out the Baobabs and 1000-year-old olive trees!) His second post, “Finding a colourful little bit of paradise at Marina Bay,” has gorgeous orchid pictures from the conference itself. The second post concludes with a slideshow full of lush tropical blossoms.

Continue your travels with these fantastic World Orchid Conference pictures from a Singapore photo forum, and it’s like you’re really there. There are over 200 photos, mostly from the conference’s orchid exhibits. You’ll see more of the Flower Dome, too. Now, where’s that passport?

Cymbidiums

Posted November 13th, 2011 by Marc Cohen
Categories: Cool Growers, Fertilizing, Fragrant Orchids, Growing, Mini Orchids, Photos, Watering

Here on the California coast, the Cymbidiums spoil us. I’ve seen luxuriant blooms on neglected orchids stuffed into sidewalk planters. Gardeners inherit abandoned plants from earlier tenants, sometimes without even realizing that the strap-like leaves belong to orchids. It turns out that our mild climate mimics the slopes of the Himalayas where these orchids grow wild. As long as they receive bright light and water over the summer, they manage to flower. Admittedly, this unidentified yellow hybrid isn’t the most colorful of thousands of Cymbidium varieties. However, it is one of the types with a rich, sweet scent, and it can bloom twice a year.

Yellow Cymbidium flowersClose up of Cymbidium flower lipYellow Cymbidium flower and leaves

One trick to help Cymbidiums bloom is to give them nightly temperature drops of 15-20°F (8-11°C,) especially in autumn. Without this day/night temperature difference, they won’t form flower spikes. Here on the coast, they can grow in full sun. However, growers in warmer areas should provide morning sun and afternoon shade. Plants need enough light so that leaves are light green, not dark green. Cymbidiums enjoy regular fertilizer, and they love compost. They can survive a light frost, although temps below freezing usually damage flowers.

For orchid growers in warmer climates, miniature Cymbidiums like warmer temps. These small varieties are best for growers where summertime temps stay above 70°F (21°C) at night.

Yellow CymbidiumYellow Cymbidium flowersCymbidium flower side view

AOS Moving to Coral Gables

Posted November 8th, 2011 by Marc Cohen
Categories: Botanical Gardens, Conservation, In the News

The American Orchid Society (AOS) is moving to Coral Gables. For years, the AOS has had a home and orchid garden in Delray Beach, Florida. The Great Recession has dealt a blow to the society’s finances, so they need to sell their property and move. Fortunately, they’ve found a new home at Fairchild Tropical Botanic Garden just outside of Miami. “The missions of AOS and Fairchild Garden are perfectly aligned,” said Ron McHatton, the AOS’s chief operating officer. “With Fairchild’s international reputation, we have found a financially strong, solid strategic partner equally focused on horticulture, education and conservation.” The AOS will move its headquarters and its world-class orchid collection by March of next year. Many orchids will be displayed in a new conservatory opening at Fairchild in December 2012. Both groups will remain independent, and the AOS will continue to publish its monthly Orchids magazine.

Orchid Calendars

Posted November 4th, 2011 by Marc Cohen
Categories: Buying Tips, Conservation, Misc

Even if you don’t have a green thumb, you can have beautiful orchids all year with orchid wall calendars. The American Orchid Society’s 2012 calendar contains a year’s worth of mini orchids. The Orchid Conservation Alliance’s 2012 calendar (front cover pictured below) has photos and stories of a dozen of the world’s most endangered orchids. By adding these paper orchids to your collection, you’re supporting these essential conservation groups. Check their websites to purchase the calendars and other merchandise.

OCA 2012 calendar cover

November Orchid Shows

Posted October 31st, 2011 by Marc Cohen
Categories: Botanical Gardens, Events

Orchid lovers around the globe are looking to Singapore this month for the 20th World Orchid Conference. From November 13-20, the planet’s top orchid pros, academics, and hobbyists will gather for exhibits, talks, and a show. This year’s conference theme is “Where New and Old World Orchids Meet.” For those of us who don’t have our plane tickets or reservations at Singapore’s remarkable new Marina Bay Sands, there are many more orchid shows around the globe to enjoy. And mark your calendars for the next World Orchid Conference in Johannesburg in 2014.

November 2
Orchid Society of West Pasco Show, Buena Vista Manor Clubhouse, 5112 Rosada Ave., Holiday, Florida
November 4 – 6
Northeast Louisiana Orchid Society Show, Pecanland Mall, 4700 Milhaven Rd., Monroe, Louisiana
November 4 – 6
Massachusetts Orchid Society Show, Tower Hill Botanic Garden, 11 French Dr., Boylston, Massachusetts
November 4 – 13
Wystawa Storczykow, al. Pilsudskiego 61, Palmenhaus, Lodz, Poland
November 5
Orchid Society of Great Britain Autumn Show, Wraysbury Village Hall, The Green, Wraysbury, Middlesex, UK
November 5
Nambour Orchid Society Species Show, Uniting Church Hall, Coronation Ave., Nambour, Queensland, Australia
November 5
Hawke’s Bay Orchid Society Sarcochilus Show, Rotary Lounge, Taradale Town Hall, Lee & Meeanee Rds., Napier, New Zealand
November 5
Jamaica Orchid Society Judging, Jamaica Confederation of Trade Unions Building, Hope Blvd., Hope Pastures, Kingston, Jamaica
November 5
Federation of Malaya Orchid Society Monthly Show, Penang Botanical Garden, George Town, Penang, Malaysia
November 5 – 6
Orchid Society of California Show, Lakeside Garden Center, 666 Bellevue Ave., Oakland, California

Read the rest of this post »

Creepy Carnivorous Plants

Posted October 27th, 2011 by Marc Cohen
Categories: Books, General Gardening, Photos, Problems

As Halloween quickly approaches, it’s the perfect time for a few creepy carnivorous plants. They’re helpful orchid allies, providing superb natural pest control, and they make great green alternatives to toxic pesticides. Bug-eaters come in many forms. Most famous are Venus Fly Traps, but there are also hundreds of varieties of pitcher plants, and many other lesser-known kinds. These predators share similar growing conditions to orchids, requiring high humidity and bright light. Some are native to tropical areas, while others grow in cold climates. Despite any scary stories you’ve heard, Little Shop of Horrors isn’t real — no plant can eat a human.

Venus Fly TrapsVenus Fly Trap with fly remainsPitcher plant with curvy stem

As bog plants, most need moist soil. Unlike orchids, carnivorous plants like to sit in trays of water. Only use rain water or purified water, since they cannot survive with tap water chemicals. Artificial fertilizer can kill them, too, so be careful not to splash when fertilizing orchids. However, compost is safe for them. Do not feed them meat like hamburger or poultry since they cannot digest it. All they need is pure water, a few bugs, and bright light. Remove old traps that brown and die. Some types go dormant over winter.

Tropical pitcher plantCarnivorous Sundew plantSundew plant with sticky leaves

Besides Venus Flytraps and pitcher plants, there are many varieties of sundews, whose leaves have sparkly tentacles of deadly glue. Butterworts (a.k.a. Pinguiculas, or Pings for short) don’t appear lethal, but their broad leaves have tiny, sticky hairs, and act like flypaper.

Indoors in my orchid collection, I’ve made room for a small sundew and a Ping. They’ve been efficiently digesting little pests like gnats, aphids, and other inadvertent hitchhikers from the back garden. Our 2 pet cats love to hunt larger insects, so these small-insect eaters round out my pest control team. Creepy carnivorous plants are indispensable for many orchid growers like me.

To learn more and select the best carnivore companions for your orchids, check these resources:

Pitcher plantPinguicula, or Butterwort, with leaves that trap small bugs (new leaf growing in middle)Carnivorous pitcher plant

Genus Abbreviations

Posted October 23rd, 2011 by Marc Cohen
Categories: Orchid Names

Orchid name tags often use standard genus abbreviations. The genus name is the first word of a plant’s name, such as “Vanda” in the name Vanda coerulea, or “Phalaenopsis” in the name Phalaenopsis New Stripes. Here’s a list of abbreviations for some of the most common orchid varieties:

Unlike species, hybrid, and cultivar names, which follow formal rules, these abbreviations are informal. Most orchid experts agree on a standard set, but differences abound. You can find another short abbreviation list here. For a much more comprehensive list of abbreviations, OrchidTalk Forum has an alphabetical index.

Cochleanthes

Posted October 19th, 2011 by Marc Cohen
Categories: Fragrant Orchids, Intermediate Growers, Photos, Watering

Flying bird? Incredible insect? Angel from above? The wonderful flowers of this Cochleanthes have a power to captivate. Its large white and purple blooms can be 4 inches (10 cm) tall.

Cochleanthes flowerClose up of Cochleanthes flower lipCochleanthes flower

This species is native to a vast area of the Amazon Rainforest, across Brazil, Suriname, Venezuela, Colombia, Ecuador, and Peru. The flowers may look delicate, but they’re thick and waxy, and can hold up for months. This type typically blooms in fall and winter.

Purple veins on Cochleanthes flower lipCochleanthes flowerFrilly lip of Cochleanthes flower

Thin leaves without pseudobulbs mean this orchid has little capability to store water. It needs daily watering and high humidity. Mine grows in shady conditions, and receives only a little morning sun. The name is easier to figure out than the captivating flower shape; to pronounce Cochleanthes, say “coke-lee-ANN-these.”

Cochleanthes flowers and leavesCochleanthes flower from aboveClose up of Cochleanthes flower lip

Hanging Gardens Open Greenhouse

Posted October 14th, 2011 by Marc Cohen
Categories: Events

The San Francisco Orchid Society invites you to Hanging Gardens Open Greenhouse this weekend. The sale runs Saturday & Sunday, October 15-16 at Shelldance Nursery off Highway 1 in Pacifica, California. There will be a special repotting clinic on Saturday only, 11 am – 2 pm, with expert demonstrations on potting and mounting orchids. Please note that the repotting clinic is a potluck and also BYOO – bring your own orchid. Fitting for Pacifica’s foggy climate, many intermediate and cool growers, like Cymbidiums, Masdevallias, Odonts, and Draculas, will be for sale.