Showing posts with label Oncidium. Show all posts
Showing posts with label Oncidium. Show all posts

Saturday, March 27, 2010

A couple more orchids

This is the "state of the orchidarium" today. I repotted both Dendrobium plants, slightly larger pot, ceramic with holes in the sides for drainage, after removing all original medium. One has what appears to be the start of 3 keikis. Interesting development. I also repotted one Phaelaepnopsis. At the "core" of the medium was sphagnum, surrounded by bark medium. The majority of the roots were rotted. We'll see if it survives. Now it's in an open-sided pot containing fresh bark-based medium. The bad roots were carefully removed. No water for a couple of weeks now.

The Oncidium back-bulbs that I collected last fall, have all sprouted now. The most recent was 1 week ago, about 1 cm of growth. In the hands of a total amateur(me), the ziplock-bag-with-sphagnum method works. It takes a lot of patience, but that's all.

I was looking at Cypripedium orchids, but at the cost not sure I can justify something so iffy. With the variable culture requirements, the tropicals are also iffy, but the reward of blooms during winter, and the long lasting flowers, give a better risk/benefit or cost/benefit profile for me.

I have wanted to add some Cattleya-type orchids, which are what I picture when I think "Orchid", despite knowing better. But Cattleyas are too large, and need too much sun, for my setting. With warmer weather, I can take a risk of a mail-orchid orchid, sitting outside for a few hours, when shipped, should be OK. The front of my house is not in the sun, so I don't think they'll cook, either.

These are from Hauserman Orchids.

"Vaughnara Sir Walter Raleigh 'Yellow Squirt' (Bc. Daffodil x Epi tampense alba) - yellow, Compact-Under 15" Tall 2.5" pot size, Summer Bloomer". Here is another pic of the Vaughnara.

"Potinara Free Spirit 'Eric' (Twenty Four Carat x Sc. Beaufort) - mini yellow, Winter bloomer Miniature-Under 12" Tall, 4" Pot Size on Special!" According to the "Miracle-Gro Complete Guide to Orchids", Potinara is "sympodial, compact, likes medium to bright, indirect light; mild nights, warm days, moderate humidity; let dry between waterings." The book goes on to state, "The growth habit and growing needs... are similar to those of other cattleya hybrids, but their sophronitis background makes them slightly smaller. Cylindrical pseudobulbs are topped with one or two succulent leaves." The 2 varieties that are listed are described as having easy culture but "Free Spirit" isn't listed in the reference.

Both varieties are yellow. One of these days I'll locate a green miniCattleya, or white, and add that as well.

Here is the Vaughnera, pictured on the Orchid Board. Vaughnera is Brassavola X Cattleya X Epidendrum.

Potinara is Brassavola x laelia x cattleya x sophronitis

The vast majority of locally available orchids are Phalaenopsis, or Oncidium hybrids, with some Paphiopedilum, Dendrobium, and Cypripedium hybrids thrown in. So far I haven't seen many miniCattleya hybrids, and the small number I've seen didn't appeal to me (shades of pink and purple, or splotchy flowers). With mail order, the options are more variable, although there's more risk in other ways - will they be what I order, will they be healthy, will they bloom? I imagine these will be small, and I don't know if they will bloom this year. It's all a gamble. I'll be happy if a few of the others rebloom this year, and if most of them grow and thrive.

Thursday, January 14, 2010

Oncidium starts from "backbulbs": Update

Today is my day off. I went for physical therapy for my neck disk, now back home. Before starting "homework", I checked the orchids, watered them. I accidentally noticed the baggy-with-sphagnum-backbulb system that was set up 4 months ago. Buy "set up" I mean, I had cut the backbulbs off the original orchid (Oncidium "dancing ladies"-type) , wrapped them in damp sphagnum moss, placed them into a ziplock baggy, zipped it shut, and left them in an east windowsill. I forgot to record when I started this "experiment". I'm thinking September. That would be 4 months ago.



As I discovered the ziplock bag. Barely visible sprout in the baggie. Cool!



Out of the bag. I couldn't resist. Plus, I wanted to re-position the sprout so that it gets more light.



This plant, started from another backbulb at the same time, is further ahead. growth is slow - after all, (1) it's an orchid and (2) it's midwinter and (3) I don't know what I'm doing. Still, it IS growing.




Flowers on the original plant. Photo taken January, 2008. Although the plant isn't in bloom yet this year, the new bud spike is growing mm by mm.

So now the starts are back in baggies, but separate baggies. The sprouted start is in my home office along with the other orchids, still in baggie because roots have not sprouted yet. I think they will come when the new start is bigger, and roots don't grow from the old backbulb.

Friday, December 25, 2009

Orchid report

This is the Oncidium that I repotted in the fall, thinking I was about to kill it either from bad timing or neglect. After initially potting in sphagnum, I read that sphagnum leads to rot, so I repotted it again in bark-based medium. Then left it to grow in an East exposure window. The newest pseudobulb is now the biggest, the new leaves are the greenest, and the start of a flower spike has begun to peek out at the first leaf. Cool or what! It's now in my home office, south window. With Northwest winters, even the southern exposure shouldn't be too much in Dec/Jan.

Backbulb start, taken from above Oncidium. Started in sphagnum, then potted into bark 2 weeks ago. Appears to be growing nicely. I think that sphagnum is OK for backbulb starts, since they need more moisture and there is thought to be antifungal/antibacterial property to sphagnum. Even if it takes a year or two to bloom, it is very cool to have started it myself!


One of the new oncidiums developed a pseudobulb infection, so is in quarantine. The good news is that I had decided I didn't like that one anyway/