Archive for the 'Dormancy' Category

Coelia

Sunday, January 15th, 2012

Coelia bella has a graceful beauty, a rich fragrance, and a musical name. Its delightful purple, white, and yellow flowers emerge like little trumpets, and have the sweet scent of marzipan or almond oil. This species is native to Mexico, Belize, Guatemala, Costa Rica, and Honduras.

Coelia is easy to pronounce; just ignore the “o” and [...]

Hold the Ice

Wednesday, January 4th, 2012

I’ve already blogged about my objections to watering orchids with ice cubes. It doesn’t take a degree in botany to see that tropical plants, especially warm growers like the Phal in the first photo below, don’t like cold temps. But there’s another, less obvious reason why ice isn’t right for orchids — ice cubes don’t [...]

Dendrobiums

Saturday, December 3rd, 2011

Dendrobiums are one of the largest and most diverse orchid families. They include more than 1200 species and thousands more hybrids, with a vast range of colors, shapes, sizes, and growing conditions. The first 2 pictures below show the most common variety, the somewhat confusingly named Phalaenopsis-type Dendrobiums. No, they’re not Phals — they’re Dendrobiums [...]

Orchid Care in Winter

Saturday, November 26th, 2011

Orchid care changes with the seasons. Growers need to adjust for winter’s approach in the Northern Hemisphere.

Orchids with pseudobulbs are entering dormancy. If they sport swollen stems like those in the first photo below, they may only need water once or twice per month over winter. Too much water can cause rot, or mess up [...]

Autumn Orchid Tips

Wednesday, October 5th, 2011

As temperatures cool in autumn, the orchid that sat there doing nothing for months may surprise you with a burst of new growth. Relieved of oppressive summer heat, many varieties take this opportunity to grow or bloom. The change of season also requires changes in your orchid care regimen, so here are a few autumn [...]

Cyrtochilum

Tuesday, September 6th, 2011

This hardy orchid is a Cyrtochilum, a reliable bloomer in the Oncidium family. It has spectacular yellow, white, and purple flowers. Dozens of blossoms emerge from long, vining flower spikes, which can extend up to 10 ft. (3 m.) These spikes grow for months, and like to wind around my tall Epidendrums. Blooms as wide [...]

Coelogyne

Saturday, July 23rd, 2011

Fortunately, it’s easier to grow a Coelogyne than it is to figure out how to say it. Each of these pure white flowers has a bright orange lip, and delights with a sweet scent. Blooms can last a month or more.

To pronounce it, say “see-LODGE-in-ee.” This species originates in the mountains of Vietnam, where it [...]

The Charming Lady Slipper

Saturday, June 4th, 2011

An intimidating Latin name, Paphiopedilum venustum, threatens to distract from this beautiful Paph. Fortunately, that translates to the very pronounceable “Charming Lady Slipper.” The Latin for “Stunning Lady Slipper” might fit better, but perhaps that name was already taken. Indeed, “charming” seems an understatement for this wonderful species from the southern slopes of the Himalayas. [...]

Spring Orchid Checklist

Saturday, May 28th, 2011

By the end of May, San Francisco’s rainy season has usually given way to the dry season, but this year’s weather seems anything but typical. Fortunately we’ve had nothing like the violent storms in other parts of the country. Instead, a cool, wet spring is keeping the garden well hydrated. The light rains and mild [...]

Ada

Tuesday, January 4th, 2011

No long orchid name to battle here! Adas announce themselves with brilliant color. This mass of orange petals contains multiple flowers, and looks somewhat like a mound of shredded carrots. Fortunately, a solitary blossom also stands out for the camera.

Related to Odontoglossums and Oncidiums, this Ada species is native to the Andes. It lives as [...]