Kefersteinia

Posted September 6th, 2010 by Marc Cohen
Categories: Intermediate Growers, Mini Orchids, Photos, Watering

Repotting an orchid while it’s blooming often causes the flowers to drop, so it’s best to wait until the flowers have finished. But what happens if an orchid just won’t stop blooming? That’s the “problem” I have with this Kefersteinia. It’s been in bloom for over a year now, and it’s messing up my repotting schedule. Each small blossom only lasts about a week, but the plant provides a constant supply. Kefersteinias are related to Zygos.

Kefersteinia flowerKefersteinia flower side viewKefersteinia flower and plant

This species has thin leaves and no pseudobulbs, so it needs daily watering, high humidity, and good air movement. The 1 inch (2.5 cm) yellow flowers have dark red spots and a white lip. Each intricate bloom has a pointed yellow “fang” that gives the impression of a snake’s mouth.

Kefersteinia flower close upKefersteinia flower close upKefersteinia flower side-view close-up

These fascinating flowers grace cloud forests in Colombia, Panama, and Costa Rica. I don’t know if it blooms as profusely in its native home as it does for me, but with a regular supply of fascinating flowers, I guess repotting will have to wait.

Kefersteinia flowers, buds and leavesKefersteinia plant with flowersKefersteinia flower side view

September Orchid Shows

Posted September 1st, 2010 by Marc Cohen
Categories: Botanical Gardens, Events

Dozens of orchid shows take place around the globe this month. They all provide great opportunities to see and smell amazing flowers, talk to orchid experts, check out vendors, and meet local growers. Warning: you may get hooked on orchids (if you’re not already.)

September 1 – 4
Cumberland Orchid Circle, Caroline Chisholm Dr., Winston Hills NSW, Australia
September 2 – 4
Hawkesbury District Orchid Society Show, Richmond Market Place, Richmond NSW, Australia
September 2 – 5
Sutherland Shire Orchid Society Show, Swanes Nursery, 80 Port Hacking Rd., Sylvania NSW, Australia
September 3 – 4
Nambour Orchid Society Spring Show, Uniting Church Hall, Coronation Ave., Nambour QLD, Australia
September 3 – 4
Phalaborwa Orchid Society Annual Show, Bollonato Tourist Centre, Phalaborwa, Limpopo Province, South Africa
September 4 – 5
Natal Orchid Society Spring Show, Durban Botanic Gardens Visitor Centre, Sydenham Rd., Durban, KwaZulu-Natal, South Africa
September 6 – 10
Eastwood & District Orchid Society Show, Eastwood Shopping Centre, Rowe St., Eastwood NSW, Australia
September 6 – 13
6th New Zealand International Orchid Extravaganza, Arena Manawatu, Pascal St., Palmerston North, New Zealand
September 8 – 11
Fairfield District Orchid Society Show, Fairfield Forum, 8 Station St., Fairfield NSW, Australia
September 8 – 11
Coffs Harbour Orchid Society Show, Park Beach Shopping Plaza, 253 Pacific Hwy., Coffs Harbour NSW, Australia

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Nasturtiums

Posted August 29th, 2010 by Marc Cohen
Categories: General Gardening, Photos

No, they’re not orchids, but the nasturtiums growing in our back garden look so great that they deserve a post. Nasturtiums are also known as Indian Cress, Monks Cress, or Tropaeolum, which is their scientific name. California gardeners sometimes take them for granted because they’ve naturalized on the coast, and are often found growing wild. They seed and return each year, even growing from cracks in the pavement. It’s no surprise that they enjoy our climate, considering that they’re native to South America’s Andes, the home of cool-growing orchids like Masdevallias and Odontoglossums which also do well here.

Nasturtium flowerNasturtium flowersNasturtium flower

These photos show the great variety of nasturtium colors that appeared in our garden this year. Hybrids come in many shades and patterns of orange, yellow, and red, although solid orange is the standard. Most varieties grow as scrambling vines, but there are compact types as well. The blooms have a light scent.

Nasturtium leaves and flowersNasturtium flowerNasturtium flowers and leaves

Nasturtium leaves and flowers are edible, and have a peppery taste. They make colorful additions to salads, and are high in vitamin C. They can be also be made into soup and even pesto. Pickled nasturtium seeds can substitute for capers. Whether it’s for their great flavors, intense colors, or pleasant scents, there are plenty of reasons to enjoy these easy growers.

Orange Nasturtium flowers with Santa Barbara DaisiesNasturtium flowerNasturtium flower close up

Nasturtium flowerNasturtium flower close upNasturtium flower

Cows, Cops, and Orchids

Posted August 25th, 2010 by Marc Cohen
Categories: Conservation, In the News

Native British orchids have found allies among UK dairy farmers. Many farmers are setting aside more than a quarter of their farmland for wildlife habitats. Native plants and animals are returning, like the beautiful Orchis pictured in the article (that British Orchis is a relative of the Japanese Orchis that I grow.) The farmers are following sustainable practices to encourage biodiversity, and they’re demonstrating that “nature conservation and serious commercial dairy farming can go hand in hand.” Sustainable practices can provide many benefits, such as encouraging beneficial insects, which allows farmers to reduce their pesticide use.

Wild orchids are also flourishing in Wales because of changing mowing habits. Conwy County has curtailed grass-cutting in local parks and other public lands until late summer to encourage wildflowers. It’s been a great success, and now even the local police department is finding native orchids on its grounds. “Some people see grassland as tidy, regularly mown lawns,” said Anne Butler, a local Biodiversity Project officer. “But when they see what grows in meadows, their perceptions might change.” It’s heartening to see rare orchids return when people make a little room.

Phal Harlequins

Posted August 19th, 2010 by Marc Cohen
Categories: Photos, Warm Growers

It’s time to clown around! Harlequins are a class of Phal hybrids developed by orchid breeders in recent years. Spots and splashes of color inspire their nickname.

Harlequin PhalHarlequin PhalHarlequin Doritaenopsis flower

There are two categories of these flowers: Taiwan harlequins and painted harlequins. Taiwan types have spots. They can have little spots or big blotches. These may cover just a portion of the flower, or most of the bloom. Spots may appear in a random pattern, or seem to follow a structured design.

Harlequin Phal flowerHarlequin Phal flowerHarlequin Phal flower

Painted harlequins have a marbled pattern, like an artist has splashed paint from the center of the flower towards the edges. In both painted and Taiwan types, variations in light, temps, water, or fertilizer can affect the patterns. Therefore, the blooms may vary from year to year as growing conditions change. It’s just part of their clownish nature.

Harlequin Phal flowerHarlequin Phal flowersHarlequin Phal flowers

Orchids from the Tropics to the North Atlantic

Posted August 12th, 2010 by Marc Cohen
Categories: Events, In the News

If you’re like me and missed the recent Bangkok Royal Orchid Paradise Show, you can still enjoy page 1 and page 2 of great photos (both pages have lots of pictures, so they may be slow to load.) The show photos were generously shared by the photographer in an online orchid forum, and it looks like a world-class display. Of course, that’s no surprise coming from Thailand. Situated in tropical Southeast Asia, it’s known around the world for its thriving orchid industry. Thailand also has lots of beautiful native orchids, including many Phals, Dendrobiums, Paphs, and Vandas.

You might be more surprised to find orchids by the cold North Atlantic. The Canadian province of New Brunswick has 44 native orchid species that can survive its cold, wet, and windy climate. The article describes some of these fascinating natives, such as Grass Pinks, Rose Pogonias, and several varieties of lady slipper. It also includes a good picture of the rare Ram’s Head Lady Slipper. Canada can’t match the bounty of a Thai orchid show, but it’s more proof that the orchid family spans the globe.

Bolivian Beauty

Posted August 7th, 2010 by Marc Cohen
Categories: Cool Growers, Mini Orchids, Photos

While much of the Northern Hemisphere is baking in summer heat, San Francisco is cool and foggy. Our mild weather must bear some resemblance to cloud forests in the Bolivian Andes, because this gorgeous Masdevallia has made itself right at home. In the wild, this species grows on mossy branches. In our back garden, it grows mounted on the limb of a small tree, an Iochroma. This orchid was a gift from my friend and fellow orchid nut, Tony.

Masdevallia flowerMasdevallia flowers and leavesMasdevallia flower

It’s remarkable to think that these beautiful blossoms weren’t identified by modern science until 1978. Dark purple markings could be mistaken for jaguar spots on a light purple background. Some of Dave’s photos capture the sunlight striking the yellow flower throat and illuminating the bloom.

Masdevallia flower close upMasdevallia flowers side viewMasdevallia plant and blooms

The long, tapered flower tails stand out in the images of unfolding flower buds. Colors are visible on the buds even before they open, starting off the floral show with a hint of what’s to come. It’s an impressive display for a Bolivian beauty.

Masdevallia bud starting to openMasdevallia flower partially openMasdevallia flowers and leaves

August Orchid Shows

Posted August 1st, 2010 by Marc Cohen
Categories: Botanical Gardens, Events

Orchid shows are great ways to enjoy lots of flowers, talk to orchid vendors and experts, and meet local growers. Shows span the globe this month, taking place from Hilo to Houston, from Australia to the UK, and from Brazil to the Philippines. Attend one if you can.

August 1
Coalition of Orchid Species Symposium and Plant Sale, Fairchild Tropical Botanic Garden, 10901 Old Cutler Rd., Coral Gables, Florida
August 3 – 8
Sociedad Colombiana de Orquideologia Show, Orquideorama, Jardín Botánico, Medellín, Colombia
August 5 – 8
Campbelltown Orchid Society Show, Narellan Town Centre, Camden Valley Way, NSW, Australia
August 6 – 7
Houston Orchid Society Workshop, Univ. of St. Thomas, Crooker Center, 3900 Graustark, Houston, Texas
August 6 – 8
Hilo Orchid Society Show and Sale, Edith Kanaka’ole Stadium, 350 Kalnikoa St., Hilo, Hawaii
August 6 – 8
National Orchid Extravaganza, Ellerman Park, 25a Kenthurst Rd., Round Corner, Dural, NSW, Australia
August 6 – 8
Manly Warringah Orchid Society Show, Dee Why RSL Club, Pittwater Rd., Dee Why, NSW, Australia
August 7
California Sierra Nevada Speakers’ Day, Oddfellows Building, 1831 Howe Ave. at Alta Arden, Sacramento, California
August 7
Palomar Orchid Society Annual Orchid Auction, Women’s Club of Carlsbad, 3320 Monroe St., Carlsbad, California
August 7 – 8
Festival of Orchids, Scone Palace, Perth, Perthshire and Kinross, Scotland, UK

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Forcing Phals to Rebloom

Posted July 29th, 2010 by Marc Cohen
Categories: Growing, Photos, Warm Growers

Phals, or Moth Orchids, are the most popular orchid varieties in the world. One of their fascinating traits is that healthy Phal plants can rebloom. While some Epidendrum and Oncidium varieties can bloom again from broken flower spikes (the stems that holds the flowers,) this process is most reliable with Phals. Their flowers last for weeks or even months, and then start to fade. To force the plant to produce more blooms, find the nodes, which are the swollen “bumps” that mark each segment on the spike. Pick a node below where the original flower had attached. Cut off the flower spike just above this node.

Phal flower spikesPhal flowers showing segmented flower spikePhal flower stem

Always use a clean, sharp scissors to prevent spreading plant diseases. Clean the blades with hot water and soap, rubbing alcohol, or bleach solution. Cut 1/4 inch (6 mm) above the node. Another spike may emerge beneath the cut. Its flowers will be smaller and shorter-lived than the first set.

Although this method may add a month to your blooming season, it really drains energy from the plant. In the wild, unpollinated orchids drop their flowers, and start to make energy for next year’s blossoms. When forced to rebloom, the plant uses up its energy reserves. If you’d rather keep your orchid long-term and enjoy years of flowers, I would advise you to skip this process. Instead, let your Phal return to its natural growth cycle. Cut the old flower spike as close to the plant’s base as you can without damaging nearby leaves or roots. Healthy plants will grow and produce even more flowers next year.

Little Purple Stars

Posted July 24th, 2010 by Marc Cohen
Categories: Intermediate Growers, Mini Orchids, Photos

This tiny orchid’s name is bigger than the plant itself. Lepanthopsis astrophora is a Masdevallia relative, and it’s easier to grow than it is to pronounce. Its species name translates from the Latin as “producing stars,” and since this orchid can bloom for months at a time, it certainly earns the moniker.

Lepanthopsis flowersLepanthopsis flower close upLepanthopsis flowers

It helps to have Dave’s macro lens, or a magnifying glass, to really appreciate these tiny stars. Each blossom is just a speck of color, only 3/16 inch (5 mm) tall, but still a fully formed flower. This mini can produce dozens of blooms at a time, so it’s easy to enjoy the mass of purple flowers even without a lens.

Lepanthopsis flowers and budLepanthopsis flowersLepanthopsis flowers close up

Native to coastal rainforests in Venezuela and Colombia, these orchids need daily water, constant high humidity, and good air movement. Small plants can dry out quickly in high temps or high winds, and Lepanthopsis has thin roots and no pseudobulbs. It may require daily attention, but I find it’s worth the trouble to have my own collection of little purple stars.

Lepanthopsis flowers and budsLepanthopsis plant in bloomLepanthopsis flowers