Want something printed in the newsletter?
E-mail it to
firstname.lastname@example.org no later than the 25th of the month.
Volume 71, Issue 10
About the May Meeting
"The Pride of Table Mountain"
of Washington Center for Urban Horticulture
3501 NE 41st Street
Seattle, WA 98105
Presentation is an important part of enjoying your orchid blooms.
So this month's session will be a demonstration of various techniques to
stake your orchid flower stems. Cylvia Grantham, Diane Drisch and
Mike Foster will show a number of different staking methods.
Speaker: Walter Orchard, "Disas of the Western Cape, South Africa"
Our May speaker,
Walter Orchard, will delight us with the fantastic Disas from South Africa.
He will have some Disa plants for sale at the meeting, so get ready to learn
about something different.
Walter Orchard hails originally from South Africa. He became interested in
Disas through his father, who grew them successfully near Cape Town.
In 1992 he and his wife Christine left South Africa and settled in the state
of Washington. In 2007 they retired to Yachats on the central Oregon coast
where the local climate and water supply are ideal for Disa growing.
Walter’s Disa collection is hosted by Jim Rassmann, in nearby Florence.
When not tending to his orchids he can be found fixing trails around
Yachats, pulling invasive weeds, playing bridge or baking artisan bread.
blooming Orchids so everyone can enjoy them.
Members may bring up to 10 plants to sell. Include an
extra tag with your name and the price in the plant.
The raffle will be held as usual. Win a
new orchid for your collection while supporting the
If you'd like
to check out a book or tape from our Library, please contact our
Joe Grienauer a minimum
of 2 weeks before the next meeting. Besides email, you can give Joe
your request at any meeting. For a list of library items Click on the
Library link at the top left of this page or click
Oregon Orchid Society
Show a Success
The Oregon Orchid Society Show and Sale was held April 21-22. The layout
of the show was different this year as the host society's display was
divided into several smaller table displays on round tables. Judges and
the public were able to see all the plants up close, and related genera
tended to be clustered on the same table. This format had the aesthetic
appeal of traditional orchid displays with some of the practical
advantages of a bench show. The Cherry City Orchid Society (Salem OR)
had a very nice display, as did the Portland Orchid Society and also
Oscar Allen Nursery whose display featured bromeliads as well as
orchids. In general, the quality of plants in the displays was
Our own display included 35 plants from 6 members. Allan Kaas' Jumella
sagittata was AOS nominated. Lillian Otani sent three large Cymbidiums
including a gorgeous red (Cym. Rolf Bolin) that won "Best Cymbidium in
Show." Lilian attended the show on Sunday and assisted with teardown.
Thank you Lillian! Also sending plants were Mike Foster and Donna
Pierce, Mike Pearson and Abigail Chang, Joff Morgan and Cylvia and I.
Thanks to all the above and to all other members who have generously
loaned their plants for displays during this past year.
This was the last show of the season that will include an NWOS display.
The next show that we are planning to attend is the Tri Cities show in
Kennewick on October 6-7. A month later we will be displaying in our own
show at Swanson's Nursery. Please let me know if you would like to help
with displays in either of these events.
George Grantham, 2nd Vice President
Photos: George and Cylvia Grantham
NWOS display at the Oregon Orchid Society
Jumellea sagittata, Allan Kaas
Bifernaria harrisonae, Allan Kaas
These flowers are short lived so it was
lucky they were in bloom for the show
Cymbidium Rolf Bolin, Lilliam
"Best Cymbidium Orchid in Show"
Membership Renewal Reminder
Unless you joined since July 1, it's
time to renew your membership. The NWOS membership year now goes
by calendar year. During this transition year it will go from July
1, 2017 through December 31, 2018 (18 months). You can pay at most
meetings by cash, check, or debit/credit card. You can mail a
check (payable to NWOS) to PO Box 51021, Seattle, WA 98115-1021.
You can also pay online using Paypal on our Membership page at
http://newsletter.nwos.org/membership. New members should
Dues are $30 for one
person or $40 for two people at the same address. We also have a Youth
membership of $15 for one person aged 22 or under. Dues are kept low
to encourage membership but they cover only a small portion of the society's
Each single, youth and dual membership person will be considered an
individual full-fledged member entitled to all privileges and benefits of
the society (voting, Christmas plants, etc.).
Cory for questions about your dues.
The Summer Doldrums
How to Care for Orchids During the Wilds of Summertime
By Ron McHatton with Photographs by Greg Allikas
From the May 2012 issue of Orchids Magazine
SUMMER PRESENTS CHALLENGES in the form of increased pest activity,
fungal and bacterial problems in traditionally wet areas and desiccation
in those areas with Mediterranean-like climates where summers are
typically quite dry. Careful observation of your plants is the best way
to identify small problems before they become big problems, and in the
summer, the time between these two events is dramatically shorter due to
PEST CONTROL For small collections, the best thing to do is to
physically wipe insects of and clean the plant. Isopropyl alcohol and a
cotton swab are effective against most pests and if you want to increase
its effectiveness, a drop of Ivory dishwashing liquid added to the
alcohol helps wet the typically waxy surface of orchid leaves. If you
haven't been watching carefully and the infestation gets out of control,
you might have to use chemicals. Few pesticides are specifically rated
for use on orchids, but you can use any that are labeled for
ornamentals. Use care and follow the label directions. This is not a
situation where if a little is good, more will be better.
In areas with dry summers, mites can be a serious problem, especially on
phalaenopsis. These creatures attack the surface of the leaves producing
a sort of rough silvery appearance. Mites are not insects and
insecticides offer little or no control. Mites do not like humid
conditions so efforts to increase humidity are beneficial. Light
infestations can be controlled by thoroughly cleaning plants but in hot,
dry climates light infestations rapidly become serious and control is
best accomplished by the use of a miticide.
In areas with wet summers, wet foliage and high humidity encourage the
spread of fungal and bacterial diseases. Bacterial diseases do not
respond to fungicides and vice versa so it’s important to know which
disease you are dealing with. Perhaps the easiest way to distinguish
between the two is by smell. The most common bacterial disease in
orchids produces a foul smell often likened to dead fish. If you’ve ever
had cut flowers stand too long in water, you know the sort of smell
we’re talking about.
Diseases can spread quickly. Bacterial diseases kill plants especially
rapidly and time is of the essence. Both bacterial and fungal diseases
are spread by splashing water, and this includes rainfall. Use a clean
cutting tool such as a single-edge razor blade, cut off the infected
tissue as well as at least an inch (2.5 cm) of clean, green area and
then treat the cut surface with a fungicide. Even if the problem is
bacterial, you don’t want a fungal infection to start in the wound.
Cinnamon — the common spice — is effective against fungal diseases and
can be used to coat the cut surface. It’s perhaps not
Scale, particularly Boisduval scale illustrated on this cattleya
plant, is a serious pest on orchids. Dried pseudobulb sheaths
should be removed at repotting to inspect for these insects.
as effective as a chemical fungicide but it's readily available and does
Where it’s wet, keep your plants as dry as possible. Alternatively,
provide a lot of air movement. When you water, try to do so as early in
the day as possible. This will allow adequate time for the foliage to
dry before nightfall.
In dry-summer areas, the bane of orchid growers is extremely low
humidity, and this leads to two issues. The first of these is an
increase in the rate at which plants dry out and the other is the
ever-presence of mites.
Orchids in dry-summer areas dry out much more rapidly than they did in
the winter. Depending on temperature, plants watered every two weeks in
the winter may need to be watered every few days in the summer. Here
again, nothing will take the place of careful observation. If you have
an extensive collection of plants, you might want to consider installing
a misting system similar to those used in open-air restaurants in dry
areas. Low-pressure units that install on hose lines are inexpensive and
work reasonably well to raise humidity as well as cool the growing area
SUMMER SUN How does sun affect orchids? Solar radiation is much more
intense in the summer and plants that have been thriving in full sun all
winter may need a little extra protection (shade) when the sun is at its
strongest or, often during the late afternoon, when the temperatures are
highest. Orchids are easily sunburned and you should take care when
moving plants around, especially if you are moving plants grown inside
during the winter to a spot outside for the summer. Sunburn, while not
in itself a serious problem is irreversible and will make your plants
look ugly. In serious cases the plant can be killed outright and any
leaf damage is an invitation to a secondary infection in the damaged
Orchid foliage should be a light yellow-green. The first sign of too
much light is often yellow foliage. If left alone, this yellow foliage
will eventually turn white and then dark brown and dry as the sunburned
area dries out. If the problem is caught before the chlorophyll has been
completely destroyed it is often possible to reverse the damage. Once
white spots or sunken areas have appeared, the damage is irreversible
and the best thing one can do is stop further progression with more
Sudden increases in light levels will burn orchid
foliage as illustrated here on this Bifrenaria
harrisoniae leaf. While small sunburned spots
aren't really detrimental to the plant, they are
unsightly and remain for the life of the leaf.
The damage to these hybrid cattleya leaves
is heat stress and not sunburn. At high
enough temperatures the leaf tissue is killed, resulting in the
collapse illustrated here.
CAPITALIZING ON THE HIGH-GROWTH SEASON Because of increased light and
temperatures, your plants will benefit from more fertilizer (increased
frequency, not concentration). This is especially true for those
varieties that put out new growth during this time. Avoid fertilizers
that contain significant amounts of urea (formulations with more than 20
percent nitrogen). Urea nitrogen is much less readily available to
orchids in soilless mixes than ammoniacal and nitrate forms.
Plants will also dry out faster. To avoid root damage, water plants
before fertilizing; the roots will be wet and less easily damaged by the
salts in the fertilizer solution.
If you grow your plants inside during the cooler months, moving them
outside for the summer is often beneficial and your plants will respond
with renewed vigor. Remember, make the transition slowly. Place them
under heavy shade for a few days, then somewhat less shade for a few
days and then move them to their summer homes, paying attention to the
color of the foliage. You'll be glad you did.
News from the
American Orchid Society
Make sure to check out the new Digital Archive Search available for
Orchids magazine! As an AOS member, with access to past issues, you are
now able to search over 2,050 articles by date ranges and key word. It’s
so useful to be able to quickly locate info on a specific species or to
find that article you read and wanted to go back to when you can’t quite
remember which issue it was in.
Make sure to catch AOS President, Susan Wedegaertner’s, message in the
May issue of Orchids. She shares well deserved honors awarded to
several people who have contributed on the national level.
The American Orchid Society is an organization that runs on its generous
volunteers and a very small number of paid staff. NWOS society members
can participate at the national level for anything from project work to
full committee participation. Look at the list of National Volunteer
Committees listed in Orchids magazine to find a list of all
committees you might be interested in and their contact e-mails. Just
drop them a line. They’re a great group of people and always looking for
new volunteers and fresh ideas. The Affiliated Societies Committee
always welcome AOS members to join us. If you’d like to join us you can
reach us at
Remember to check out
http://www.aos.org/orchids/kids-corner.aspx recap for more ideas and
suggestions for Kid’s activities and ideas for making a Kids’ Corner of
your own at your next orchid show. All it takes is some crafty people,
some loving volunteers and a table. The activities can all be created
easily. See other articles for instructions on how to create the
activities we’ve tested out or make up your own great activities. Please
share your ideas and experiences with the education Committee at
Thanks for all the pics that you are sending in for the Instagram feed.
Our Instagram Administrator, Candace Hollinger, sends her appreciation
to you all. It’s wonderful to see such a variety of everything orchid
that’s enjoyed around the globe. The AOS would love our pics of how we
grow, what’s blooming now or anything we love about orchids. Please
continue to send your photos and short videos to:
email@example.com. Be sure to send a short caption
explaining your photo. Also, if you are bilingual and can include your
caption in English plus your other language(s)—it will help with our
Remember to check-in on our Facebook Group Page for Affiliated Societies
of the American Orchid Society. Let us know how your show went and what
was successful for you or what didn’t quite make the mark. We always
help each other by sharing. Our administrator, Chad Brinkerhuff,
monitors the feed and is a great resource for all that the AOS has to
offer. Keep us up to date on what’s going on at your local society and
let us know how we can help you.
It’s easy to find the scheduled webinars and to register on the AOS
website. You’ll find the link under the All About Orchids tab. If you
check there, you will find any webinars that have been scheduled after
the production of the monthly Corner.
American Orchid Society: Greenhouse Chat with Ron McHatton
Wednesday, May 16th, 2018 @ 8:30 PM–9:30 PM EST
Open to all
Please join Ron McHatton, American Orchid Society Director of Education
and Science Officer, who will discuss a variety of topics on orchid
culture based on questions submitted by attendees. Please send you
questions to firstname.lastname@example.org by
Sunday, May 13th.
Register now using this link:
Note: After registering, you will receive a confirmation e-mail
containing information about joining the seminar.
WHAT ARE WEBINARS? Webinars are an Internet conference where you
can hear the speaker and view his presentation, ask questions, and hear
interactions from other members of the audience. You can join either on
your computer or by phone. You can join from anywhere, via your Mac, PC
or even your mobile device. Audio is included, so attendees can phone in
or use VoIP (Voice over Internet Protocol). You will need a microphone
for your computer to use VoIP.
Paphiopedilum sanderianum 'HOF Best' AM/AOS; Photographer: Glen
WANT TO LEARN, BUT CAN’T MAKE THE DATE? The live webinars will be
recorded and posted on the AOS website, where you will find a link
allowing you to view the webinars at your convenience.
THE MAY ISSUE OF ORCHIDS MAGAZINE
• Genus of the Month - Rhynchostele
• Orchids Illustrated - Vanilla
• The New Refugium Botanicum: Lycaste tricolor
• For the Novice - Citric Acid for pH adjustment of High-Alkalinity
• The Cypripediums of the United States and Canada, Part 1 - The
• Dendrobium bigibbum, Part 4: Recent Hybrids with Section
• Paphiopedilum sanderianum
Bulbophyllum Meen March Madness 'Sister Jean' AM/AOS;
Photographer: Irma Saldaña
Join the AOS
We want to sweeten the deal and give you every possible reason to join
AOS today! If you become an American Orchid Society member, you have
considerably more resources at your disposal making growing orchids even
more enjoyable and successful.
Plus your get Digital Access To Over 350+
past issues of Orchids magazine extending back to 1932!
Rhyncholaeliocattleya First Class 'Strawberry Milk' AM/AOS;
Photographer: H. A. Russell III
ALSO FEATURED IN ORCHIDS MAGAZINE!
16-page award gallery of breath taking pictures of recently awarded
RECENT ORCHID AWARDS PICTURES ON THE AOS WEBSITE:
See fabulous pictures of the most breathtakingly beautiful orchids
receiving awards from the AOS! Visit the new “Latest Orchid Awards” page
on the AOS website to enjoy these stunning photographs! Click on the
thumbnails to see them in larger format. Free to members and
Let’s grow together,
Denise Lucero, Vice-Chair, AOS Membership and Affiliated
Report from the April
Michael Cory began our meeting with his
Orchid Basics talk
about Jay Pfahl's Orchid Encyclopedia
a great place to learn about over 22,000 orchid species. Our
president, Abigail Chang, then welcomed new people and visitors.
Joe G. spoke about the library. Mike Foster has agreed to be our Show
Chair and asked for our help. We still have a couple of Board
positions open for Volunteers. Georg G. gave a report about the
recent shows at other societies. He also called on all of us to
give him nominations for the upcoming Gary Baker Award.
Mike Foster introduced the evening's
speaker, Brenda Oviatt from Botanica Ltd, in Missoula, MT. Her
talk entitled "Angraecoid Orchids - Keeping a Piece of Nature Alive"
began with a good description and understanding of the conditions in
their native habitat. These plants are in danger in their native
lands due to poverty, loss of habitat, extinction of their insect
pollinators, not just the loss of the actual orchid plants. She
and others are working hard to provide ex-situ conservation of as many
Angraecoids as possible.
The second half of her very well-done and
interesting talk reviewed the best growing practices for these
monopodial, Vandaceous and very highly evolved group of orchids.
She discussed their dormancy, their temperamental roots, how to repot or
mount them and their preferred growing conditions. She encouraged
each of us to choose a species or geographic region to adopt and grow
plants in order to conserve them for the future.
Joe Grienauer reviewed the plant table.
Photos: Diane Drisch
Brenda helps with choosing
the right plant
checking out the plant table during break
Brenda likes taking Mike's
money as much as he seems
to enjoy handing it over
setting up the
Joe G. and plant
viguieri x self
'Big Sky Tamarin'
Showing a great Phrag.
Phrag. warscewiczianum 'Botanica's Rapunzel'
Phragmipedium wollisii 'Marisa's Maypole'
Editor's Note: More photos will be placed here
over the next day or so.
Please check back and refresh your browser to see
When this note is gone, the newsletter is complete.
Schedule of Upcoming Events
May 14, 2018 - NWOS meeting - Speaker: Wally Orchard, "Disas
of the Western Cape, South Africa"
June 11, 2018 - NWOS meeting - Annual Meeting, Gary Baker Service
Award and Potluck Dinner
Reminder for Officers & Board Members
The schedule of Board Meetings for
this membership year is: 5/8/18, 7/ ?? /18, 9/4/18, 11/6/18. Meet at 7
p.m. at Mike & Sheila Cory's house unless notified that it's been moved
Shopping on Amazon? Use this link to Earn $$ for
If you go to http://smile.amazon.com
and sign in to your account, you'll be given information about
supporting various non-profits. You can type in "Northwest Orchid
Society" and it will then send .5% of your purchase price to the
It's really easy, but you have to remember to go in through the
'smile' subdomain when you place
the order, otherwise it will go through as a regular order.
NWOS Website Links
No Special Announcements this month.
Northwest Orchid Society