Showing posts with label Cymbidium. Show all posts
Showing posts with label Cymbidium. Show all posts

Saturday, January 01, 2011

Repotting a cymbidium

I like this cymbidium a lot. Here it is at its peak. The compact size can be misleading - cymbidiums have a lot of roots compared to other orchids. They're like Clivias or Daylilies in the shape of the leaves and the mass of roots compared to their tops. I have one cymbidium in the state of almost-rebloom, so I hope that means I'm able to grow them and they're worth the effort.

Here is was just before repotting. I thought about leaving it until the bitter end, but instead of being fresh and joyful, it looks sad now. Time to accept that and clean it up.

It came out of the pot easily. This was about a 1 quart pot. The original mix looks like a medium grade bark.

I love the mass of roots, like a handful of night crawlers. Massive amount of roots. At this point I also cut off the old flower spikes, to get them out of the way, and trimmed off any dead or broken looking roots with a sharp sterile pruner. There were not many bad or damaged roots. At the center was a tightly packed mass of sphagnum - probably what the plant was started in. I removed it. My theory is that it can be a source of rot when the plant is in my hands, as opposed to in a tiny starting pot in the hands of the original grower.

I wanted to use a pot about the same size, but with so much root mass, I moved it up instead. Some authors recommend cutting off the roots. I don't know what's best, but this is how I did the last one and it did very well and is about to rebloom soon.

Here's the mix I've been using for all of my orchids. Medium grade fir bark, some perlite, some oyster shell calcium.

Now I've added the bark medium, with lots of tapping and shaking and holding the plant in place. It was interesting that even with the mass of roots, when I poured the old medium back into the old pot, it filled it to within 2 inches of the top. The dead leaf tips are also pruned back. I sprayed it with neem oil, which I hope makes it more disease and insect resistant, and also gives the leaves a nice shine.

Before potting, I wrote a description of the plant and the date on the inside rim, using a Sharpie. That way I know what's what, but in an unobtrusive way.


Sunday, November 07, 2010

Cymbidium

For the past month, I've been hoping to see the new Cymbidiums at Fred Meyer and Trader Joe's. And now, there they are. Last year's Cymbidium grew nicely, and a nice green one would be a perfect addition. On seeing this one, relatively compact and lavish blooms, plus fragrance, I lost my resolve to buy only the green one and added this. Getting it home, I noted tiny grey spots that wash off easily - mildew? or something from the air? Washed them off, and drenched with neem. We'll see if there is something to worry about.

This was the first one I saw, and added it before the others. Didn't buy it, went back to the store the next day then the next. So here it is. A little buyers' remorse here. Beautiful, big, fragrant flowers. I don't really "need" it. If "need" is the right word. Still, they are not a lot of trouble, outside spring through fall, including now. Only when freeze threatens do I need to bring them back inside.

That green one. This isn't the green one I had in mind. It's better. The flowers are more unusual.

The entire plant, flowers included, is much more compact. Better for a windowsill grower. Smaller ones are reported as less dependent on cool weather to bloom. Not sure that's an issue for me. They are always an experiment. There are too many beautiful orchids.

The brown-flowered Cymbidium from last year. She torments me with her slow, gradual unfolding. The two buds are larger than a month ago. I need to wait two weeks between looks, to see change. I discovered it had been knocked over and off its perch. No obvious harm. Outdoor orchids are looking a little borderline as far as mold and threatened rot, so I sprayed with neem. It's still in a sheltered spot, out of rain but on south side of house. With gloomy rainy days, I hesitate to call this full sun.








Thursday, October 14, 2010

More buds on orchid plants

So often, it's difficult to find a photo or reference telling us "what is this growth on my orchid" or giving us an idea of "how long from this bud to an actual flower". Which is why I photographed these early buds. I don't know how long it will take either, but I feel certain these are flower buds and not new growths.

This Cymbidium hybrid (brown flowered, shown in posts earlier this year) has been in full sun, outdoors, from early summer to now. I've quit fertilizing, and quit watering unless it looks completely dry. I feel certain the two bottom growths are flower buds - the new growths that result in leaves are green, while these buds are deep maroon. They've been present about one month and are very slowly growing. I think they'll be blooming in a few more months, but not having grown them before I'm not sure. The plant will have to come inside before actual frosts, but not until then.

This Phalaenopsis hybrid is producing a new growth as well. The point of confusion for Phalaeonpsis would be with new roots. However, the roots look like little green and white worms, and point downwards. They seem to originate more on the side, as opposed to just within a leaf node. This growth is pointing upwards, seems to have a sheath structure similar to those seen on the old, dried flower stems, and doesn't have the downy vellum of a root. Again, I don't know how long to a flower. I'll have to post when it actually blooms - probably in 2 or 3 months. Meanwhile, I continue fertilizing weakly weekly, 1/4 teaspoon of "Growmore Bloom Formula", 6-30-30. The instructions state 1 teaspoon per gallon, but I'm using the 1/4 teaspoon per gallon of rain water method, which is the designation "weakly weekly". One thing I noted, this fertilizer does not contain magnesium (It has manganese which is an entirely different mineral). I've read that orchids do require magnesium, and therefore benefit from occasional dose of Epsom Salts. Not sure if that's true, and they seem to be doing quite well without it, but maybe I'll add a 1/4 teaspoon of Epsom salts per gallon to the next watering. This plant's leaves have a burgundy hue, which could mean too much light, but I think that's just this plant's coloration. I like these dark colored leaves. Some others in the same, North, window, are a grassy green.

These are the current outdoor orchids, except the Cymbidium above. These are in full sun, south side of house, and just being watered with rainwater, rarely adding some "bloom food" but usually just rain water. These are Yamamoto dendrobiums, and this is as close as I can come to their instructions for fall care. Giving water and fertilizer is said to encourage growths (keikis) and discourage actual flower buds. The plant in the greenish pot has 3 keikis, and had one earlier this summer that I removed and started as a new plant, but that's all. They may shrivel and the leaves may turn brown and fall, that's considered normal. I takes self discipline not to water them more, and when looking very dry I do give some water.
In addition, there are two young Oncidium (probably variety "Gower Ramsey") plants grown last year from backbulbs. One has a second growth/pseudobulb sprouting off the side. These are quite vigorous and fast growing, for an orchid, but I cant seem to get them to bloom. This is my attempt to simulate their unknown native conditions and encourage bloom. These Oncidiums may be too young to bloom, or this may not be the correct condition, but it's worth a try.

Sunday, January 24, 2010

Another Cymbidium Photo

As long as I had the camera out, I took another photo of this Cymbidium. Cool color!

Thursday, January 21, 2010

Orchids

Representatives from two more genera. I did not plan on adding either. Most Cymbidiums are too large, and I have never seen an Epidendrum available.

I'm trying to photograph the entire plant. Web photos are cool, but all too often, they just display the flower. It's difficult to find good photos of the entire plant. For me, much of the allure is in the form, from the roots, to the pseudobulbs or canes, to the thick leaves, to the flowers.

A small Epidendrum. These are also called "Reedstem Epidendrums" or "Poorman's Orchid". The flowers are held in bunches above the reed-like stems (duh) for an appearance similar to a kalanchoe. Culture is said to be very easy, similar to most other windowsill orchids - American Orchid Society directions here.

A brownp-flowered cymbidium. I had no plans at all to buy one. Most are too big. This one is smaller, and I'm partial to unusual colors like this one. I had a bit of buyer's remorse, solely because there isn't much room. Culture is similar to epidendrum and Cattleya.

The entire Cymbidium. We'll see how it does. In a way, the flowers are too much - one flower on a stem would be less extravagant. These are said to last 2 or 3 months. We'll see how it does in my room.