Gold Coast Cymbidium Grower's Annual Show

 Yesterday was the Gold Coast Cymbidium Grower's annual show (http://www.goldcoastcymbidiumgrowers.com/). The exhibits provided examples of Cymbidium species, primary hybrids, colors (combinations and concolors) across the rainbow, sepal pelorics, petal pelorics, feathered patterns, bi-color patterns, spots and stripes, flower spikes either upright, arching or pendant, fragrance, and foliage variegation.

Antique hybrids were represented by two different clones of Dryad (insigne x parishii) (1914) and Swallow (Alexanderi x Pauwelsii) (1916), whose flower conformations could be compared with a modern, more complex hybrid such as the first bloom seedling of a presently unregistered (Joan's Charisma x (Lone Star x Winter Wonder)), whereby Joan's Charisma represents at least eleven generations, Lone Star represents at least six generations, and Winter Wonder represents at least nine generations of hybridizing.

One example to illustrate the differences between ploidy levels, 2N vs 4N, was provided by two different plants of floribundum 'Alpine' to be compared with floribundum 'Alpine Giant', a tetraploid variant of 'Alpine' which received a bronze medal by the Cymbidium Society of America (B/CSA), exhibited by Jeff Trimble.

Barry Zimmerman exhibited a wonderfully grown clone of the primary hybrid Scallywag (floribundum x suave).

I thought the show provided a good study on the variations between different species and hybrid clones. There were three different, separately exhibited, clones of the lowianum species: 'Green Oaks' (green segments with red V lip), 'James Drysdale' (chartruese yellow segments with red V lip), and 'concolor' (chartreuse green with yellow V lip). I counted over thirteen different (x devonianum) hybrids, including Devon Gala 'New Horizon' (below), which allowed the public to see what traits devonianum confers onto its offspring. Similarly, there were six different (x Fifi) hybrids, evidencing the recent popularity of Fifi itself and as a desirable parent. Barry Zimmerman's display provided yet another educational opportunity with, side-by-side, three different Vogelsang hybrids: (x Candy Floss), (x Brandy Wine), and (x Via Arcadia Rincon).














As for variations within a grex, I counted four different clones of Memoria Amelia Earhart, three of Dorothy Stockstill, and three of Street Tango.



















Below is a nicely grown specimen plant of a second generation, complex devonianum Miniature cymbidium hybrid: Nickelodean Queen.

Variations of color combinations and flower development were represented by the bi-color Tower of Fire 'Sunset Flame', the sepal peloric Freaking Flame 'Windermere', the petal peloric Hot Devon 'Bird of Paradise' (not shown), and the feathered Pia Borg 'Splash', AM/AOS.

This curiosity is Pepper's Fire 'Carnival', which is somewhere in between a feathered and a petal peloric.

And finally, this is Cattleya amethystoglossa 'Sea God', HCC/AOS. It caught my attention because the plant had two inflorescences with 23 and 24 flowers each on a well-grown plant. As of today, there have been 65 American Orchid Society (AOS) awards to C. amethystoglossa, including 6 cultural awards, 17 highly commended certificates (HCC) and 40 awards of merit (AM). The 'Sea God' clone had been awarded by the  back in 1979; however, since then, there have been only three awards to amethystoglossa having as many as, or a slightly higher, flower count. However, this clone might not be elevated to an AM today because of the advances in the standards for flower conformation, whereby the judges are typically looking for flat flowers with wide segments, e.g. increased petal width which now averages above 3.6cm, and increased natural spread which now averages above 8.5cm.

Cym. Chocolate Chip Mint

This is my first blooming of Cymbidium Chocolate Chip Mint (sinense x Tiger Moth), a gift from John Dunkelberger (http://www.nationalcapitaljc.org/PERSONEL/PERSONNEL.HTML). This plant is a true Miniature Cymbidium because it is the product of all miniature cymbidium species, to wit, sinense, tigrinum and floribundum (aka pumilum). It produces fragrant flowers, per sinense and tigrinum. The 'type and breeding', of course, results in porrect petals per all of the parent species.

As for flower count, this is an interesting mathematics exercise to calculate the geometric mean (the square root of (A x B)), and thus relate the actual value with what one might expect from such a hybrid.

The awarded [plant] has as many as #, average of #, flowers per inflorescence:
tigrinum has as many as 8, average of 4; 
floribundum has as many as 46, average of 27;
sinense has as many as 21, average of 12;
Tiger Moth has as many as 21, average of 17; and
Chocolate Chip Mint has as many as 13, average of 12.

So, if one calculates the geometric mean flower count per species alone, one might expect, per the respective maximums about 20 flowers per inflorescence ((square root of (46x8)=19) x 21) and per the respective averages about 11 flowers per inflorescence ((square root of (27x4)=10) x 12).

So, if one calculates the geometric mean flower count per the Tiger Moth parent, one might expect, per the respective maximums about 21 flowers per inflorescence (square root of (21x21)=21), and per the respective averages about 12 flowers per inflorescence ((square root of (12x12)=12).

My first bloom plant has six flowers and one bud on a single inflorescence, so this inflorescence is substantially less than the previously awarded clones of this grex, as well as what one would expect from the geometric means. Perhaps next year, now that the plant is becoming established from the prior move across the country, it will produce more flowers per inflorescence. Nevertheless, I find this to be a wonderful Mini Cym hybrid, and a definite keeper.

Cym. wenshanense

A new seedling of Cymbidium wenshanense, originally sourced from Andy's Orchids (http://www.andysorchids.com/), flowered this past weekend.

According to Du Puy and Cribb (The Genus Cymbidium, 2007), Cym. wenshanense was discovered in southern China, south-eastern Yunnan. The flower form is strongly reminiscent of the well-known Cym. erythrostylum; however, the plant habit is quite compact, as evidenced by the small pseudobulbs, such that when it is out of bloom, one might even mistake it for Jensoa section species. The flowers are delightfully fragrant, which is also different from Cym. erythrostylum, and I love the striated lip markings.

A quick search using the RHS website (http://apps.rhs.org.uk/horticulturaldatabase/orchidregister/) shows that, at this time, Cym. wenshanense as only been used a few times for hybridizing:
i) Ying Xiang Lan (x tracyanum) 1998;
ii) Leek (wilsonii x ) 1998; and
iii) Hengduan's Isabell (tortisepalum x ) 2010.

Given it's compact habit, this will be a nice species to use for breeding miniature cymbidiums. The relatively large flower size in relation to the small plant may challenge one's definition of 'miniature', depending upon whether one uses the flower size, as opposed to plant habit, as the determining factor.

Peninsula Orchid Society Show

This weekend was my first time attending the enjoyable Peninsula Orchid Society's Show. The showroom perimeter was full with vendor, society and individual exhibits, of which only two exhibits are shown below, while the center tables were filled with individual society member's orchids.

Exhibit by Peninsula Orchid Society members, I believe.

 

Cymbidium Green Sour (Katydid x Lunagrad) specimen plant, exhibit upper right, which received several show ribbons and trophies, as well as an AOS award.

Cym. Vallambrosa (Doris x tracyanum) 'Stirling', exhibit upper left.

Cymbidium Cranberry Velvet (Nancy Hatsuko Ikeda x Ruby Eyes) 'Gidget', exhibit lower center

Cymbidium Betty Court (Canterbury x devonianum) 'Gloria Bygdnes', exhibit lower left

Exhibit by Weegie Caughlan

Hazel Faye 'Cinnabar', HCC/AOS, exhibit upper right

Kirby Lesh 'Cinnabar' S/CSA, AM/AOS, exhibit upper left

Peter Dawson 'Grenadier' (Lunagrad x Solana Beach) G/CSA, AM/AOS, FCC/NZOS, exhibit upper center

Strathdon 'Cooksbridge Fantasy' B/CSA, AM/AOS, exhibit lower left

Below are three beautiful examples of orchids exhibited by Tom Perlite of Golden Gate Orchids. The Masdevalias are siblings of O'Brien's Passion: 'Ablaze' in red was awarded an AM/AOS, and 'Golden Sunset' in orange. I'm mighty tempted to buy one of these....

Here is the wonderful Oda. (Fort Point x Picotee). Wow-factor, indeed! 

Can you imagine how stunning a Cymbidium with such a bold and colorful picotee would be?

 

New Climate

Growing Cymbidiums back in the DC region had its challenges. The summer nights were hot and humid. The winter lows were too cold, necessitating protection either in a heated greenhouse or being brought inside the house and kept under lights. Below is a graph of the 2012 temperatures from a weather station closest to my previous home. Heat- and warmth-tolerant Cymbidiums grew well outside for most of the year; whereas, the cool-growing Cyms melted in the summer heat.

Now that I'm back in San Francisco, one would think it will be much easier to grow the Cyms. However, San Francisco has a multitude--by some reports over seventeen-- of different microclimates, illustrated below.

My simple goal for the Cyms since their move is to just survive and produce new growths. Most are complying, but I think I've lost two or three plants. For myself, the goal is to learn about my new microclimate and its changes throughout the year. Below is an equivalent graph of the 2012 temperatures per the weather station closest to my present locale. You can see that the temperatures are fairly even throughout the year. Given that my local temps infrequently go above 70F, I no longer have a strong need for heat-tolerant Cymbidiums, and I'll be curious if my existing heat- and warmth-tolerant Cyms will flower for me in their new environment.

I think the more challenging variable is managing light levels due to the abundance of fog. The graph below illustrates how much light levels change from day-to-day. If I lived in one of the sunnier microclimates just east of my home, the April thru August daily light levels would average about 2000 to 3000(!) watts/m2 higher. The peak above 8000 watt/m2 in early June represents a sunny day, and indicates just how much light I'm losing to the fog the rest of the summer season.

Below is a graph of light readings on a sunny day: a nice smooth curve. Such a rare occurrence here.

Below is a graph of light readings on a foggy day. You can see how variable the light levels can be throughout a single day.

Here is another example of a foggy day, with the fog burning off late morning, but yielding a foggy afternoon variably interrupted with sunshine.

Here the fog burned off late morning and yielded a relatively sunny afternoon.

It is going to be a challenge to provide adequate shading for the Cyms when they are exposed to direct sun but also allow for sufficient lighting when under fog. There are already some sun-burnt leaves here and there while I find the right balance of shading and the plants acclimate to their new environment.

New Cymbidium Benches

My new Cymbidium benches are now finished. Part of the delay was simply getting the shade frame pipes ordered and delivered. Constructing the Jensoa bench elements was fairly easy, especially by having the hardware supply store cut the electrical conduit tubes to size. This bench represents essentially the same growing space I had back in Maryland.

The regular benchtops elements were more challenging for me to complete. It took me a few weeks to find the materials that I could work with for my designs, but I'm happy with the results. Some portions of the shade frames stick out (red flags), but that's okay with me 'cause those are segments where I'll be hanging other orchids.

All in all, my designated growing space is now three times larger than what it was back in Maryland! Now it's time to retrieve my Cyms from boarding and introduce them to their new home.

Westbound

After 6.5 years of being away, it is time to return to Fog City! Highlights of the drive will include brief visits with friends and colleagues whom I haven't seen in years, along with some family.

Although the Cymbidiums will be subjected to travel stress, I expect they will, ultimately, be happier in their new environs. I'm certainly looking forward to growing my tracyanum into a specimen plant!