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by Anita Walsmit Sachs and Deb Shaw
Anita Walsmit Sachs will be offering a 5-day botanical drawing and painting workshop, “Hortus atelier” in cooperation with The Hortus botanicus, Leiden, in 2015.
About the Hortus
The Hortus botanicus Leiden is the oldest botanical garden in the Netherlands and one of the oldest in the world. It is located in the historical centre of Leiden. Sitting behind the academy building of the Leiden University, the garden is a green oasis with a large collection of plants native to Southeast and East Asia, Southern Europe and South Africa. The Hortus is a haven within the city centre, a historical monument and a meeting place full of character.
People go to the Hortus to relax, enjoy the seasons or to learn more about the diversity of the plant kingdom.
In 1590 the Hortus was founded by the University of Leiden. In 1594 Carolus Clusius (1526-1609) turned it into a medicinal herb garden. But Clusius introduced the tulip and many other plants like tobacco and potato to the Hortus. These flowers and plants became known throughout Western Europe.

The Hortus botanicus Leiden is the oldest botanical garden in the Netherlands, and one of the oldest in the world.
Many famous international scientists such as Clusius, Boerhaave, Linnaeus and Einstein were connected to the Hortus botanicus in Leiden.
In the 19th century, the German physician Philipp Franz von Siebold (1796-1866) brought hundreds of plant species with him from Japan to the Netherlands and 15 of these original introductions can still be found in the Hortus today.
The Hortus atelier program
The purpose of a botanical illustration is primarily a scientifically accurate drawing. The artistic input is reflected in the sensitivity in which the subject is displayed and in the composition.
PROGRAM: from April 12 to April 16, 2015
First day, the class starts at 10, with coffee and presentation, who is who and info, followed by a guided walk through the garden.
Lunch 12.00 – 12.30
Afternoon 12.30 – 15.45 Instruction about the subject to draw. Pencil drawing, including light and dark values.
Second day, instruction about material, paper, paint and colour mixing and composition.
Third day, transferring the drawing to the watercolour paper and painting.
Fourth and fifth days, continuing the process. Every day there will be a discussion about the progress of the drawing. The education is individually focused to gain an optimal result.
Costs
The fee will be € 375,00 including morning coffee, brasserie lunch and afternoon drinks. Information about payment will follow after subscription as well as information about lodging possibilities. A small optional assignment will be given before the course starts. Sign ups for the class are through Anita directly via email.
About the Artist
Anita initially trained in fashion design at the Royal Academy of fine Arts in The Hague. Fifteen years ago she became a scientific illustator at the National Herbarium of Leiden University, now Museum Naturalis. She has won two RHS Gold medals and a second prize medal at the RBG show in Sydney, Australia. Anita has participated in the Highgrove Florilegium of HRH Prince Charles. She is passionate about painting and teaching.
by Deb Shaw
NPR posted a charming “Look at This” on October 23, 2014. Titled “This is Color: A Weird Little Lesson, in Rainbow Order,” by Nicole Cohen and Beth Novey, the presentation takes the viewer through the rainbow with facts, trivia and interesting information about color. Well worth taking a break for a few minutes.
by Diane Daly, Dr. Jennifer Funk, and Deb Shaw

Caesalpinia pulcherrima, Red Bird of Paradise, or Mexican Bird of Paradise, watercolor by Diane Daly, © 2013, all rights reserved.
If you’re looking for additional “legume” inspiration during the holidays, we have two lists for you. The first was developed for us by Dr. Jennifer Funk, Associate Professor in the Schmid College of Science and Technology, Chapman University. This is a brief list of just a few representative legumes, showing the wide variety of plants in this fascinating family:
Agricultural legumes
- Glycine max (soybean)
- Medicago sativa (alfalfa)
- Phaseolus vulgaris (common bean)
- Pisum sativum (pea)
Legumes in desert and semi-arid ecosystems
- Acmispon – dozens of species including Acmispon glaber (deerweed) which is an early colonizer following fire, and the very beautiful Acmispon wrangelianus, which can tolerate harsh serpentine soils
- Astragalus – dozens of beautiful milkvetch species, including rare natives like Astragalus claranus, Astragalus clevelandii, and Astragalus funereus
- Caesalpinia pulcherrima
- Calliandra eriophylla
- Dalea mollissima
- Hosackia – many species with spectacular flowers including Hosackia stipularis
- Lathyrus – many species including the lovely beach-goer Lathyrus littoralis
- Lupinus – many species with yellow or purple flowers, and slender herbs to large shrubs
- Pediomelum californicum
- Pickeringia montana (chaparral pea)
- Psorothamnus – several species with spectacular flowering stalks
- Trifolium – a diverse genus of clovers including my favorite Trifolium depauperatum (cowbag clover)
Weedy and invasive legumes
- Acacia dealbata
- Genista monspessulana (French broom)
- Medicago polymorpha (burclover)
- Melilotus officinalis
- Spartium junceum (Spanish broom)
- Trifolium hirtum
- Vicia sativa
Leguminous trees
- Acacia dealbata
- Acacia koa, Hawaiian tree used for beautiful reddish wood
- Bauhinia species (can be found at arboretums)
- Cercis occidentalis (western redbud)
- Erythrina – many species can be found at arborteums
- Olneya tesota (ironwood)
- Prosopis glandulosa (mesquite)
- Sophora chrysophylla (mamane), a Hawaiian tree that provides food for the endangered Palila bird
The second list is of “Artist’s Choices,” legume subjects BAGSC members have painted, are painting, or are thinking about painting. Don’t panic if you see something you’ve painted (or are thinking of painting) on the following list. This is only a preliminary list, and it’s always fun to see the same subject painted by different people. If you haven’t sent your subject to Diane Daly, please do so. We will be using our subject lists to develop educational outreach materials with Jennifer’s students.
- Melanie Campbell-Carter: Snail vine (Viga caracalla)
- Diane Daly: Pink trumpet tree (Tabebuia impetiginosa), Mexican Bird of Paradise (Caesalpinia pulcherrima)
- Clara Josephs: Desert false indigo with dogface butterfly, Carob tree
- Joan Keesey: Wisteria, Coral Tree, Lupine
- Suzanne Kuuskmae: Lupine, wisteria
- Pat Mark: Hyacinth bean
- Mitsuko Schultz: Sweet pea (Lathyrus odoratus)
- Deborah Shaw: Castanospermum australe, Papago Bean/seeds, Acacia (wattle bush)
- Patty VanOsterhoudt: Desert Museum x Parkinsidium Parkinsonia x Cercidium (Palo Verde)
- Leslie Walker: Delonix regia
Happy painting!
by Estelle DeRidder, posted by Deb Shaw
The reception time for the opening of my show on
December 7, 2015
has changed to 1:00 pm – 3:00 pm
due to Pearl Harbor Day.
Some Madrona Marsh members who are interested in attending the opening had a conflict with the later afternoon times, and we are doing our best to accommodate everyone’s schedule during this busy time of year.
I am at the Madrona Marsh on Saturdays and Sundays, and interest is brisk. Hope to see you there!
[Read our original posting about Estelle’s project and opening at: https://bagscblog.com/2014/09/29/estelle-de-ridder-exhibition-of-the-flora-of-the-madrona-marsh/]
by Janice Sharp and Deb Shaw

Camellia japonica, taken by
fir0002, flagstaffotos.com.au, from Wikimedia Commons. Licensing/copyright: This image is not in the public domain. Under the CC BY-NC: free to copy, distribute, transmit and adapt this work provided that correct attribution is provided.
As posted in previous BAGSC News blog articles, BAGSC will be holding an exhibition on Camellias at Descanso Gardens, in conjunction with the flower show of the Camellia Societies in Southern California (for more information go to www.socalcamellias.org).
This wonderful opportunity is a two-day event in Van de Kamp Hall, coinciding with the Camellia show and judging, on Friday, January 16, 2015 – Saturday, January 18, 2015. This is not a juried show, however, we have been offered the opportunity to extend the show until October, 2015, in the Boddy House. While the initial show is not juried, the Boddy House will not accommodate all the paintings expected and therefore, a selection process will be used when the show is moved to the Boddy House. All accepted artists will have the choice as to whether they would like to have their artwork exhibited until October in the Boddy House.
All current BAGSC members in good standing (dues paid) are eligible to enter up to three (3) original works of art of botanical specimens of Camellias (no prints). There is no size limitation, and works may have been shown in previous BAGSC, ASBA, Filoli or other exhibitions.
Download the PDF Entry Form by clicking this link: bagscDescansoCamillas15f. Questions? Contact Janice.
by ASBA, posted by Deb Shaw

Susan Sapanara, Hydrangea quercifolia, Crimson Collar, watercolor on paper, © 2014, all rights reserved.
The Horticultural Society of New York and the American Society of Botanical Artists will be having a “Last Look Walkthrough” of the 17th Annual International Exhibition, with exhibition artists and juror on:
Wednesday, November 19, 2014
6:00 – 8:00 pm
Free for NY Hort and ASBA members
$5.00 for non-members
Join ASBA and The Hort, meet some of the artists and enjoy a seasonal cocktail during this reception and walkthrough of the annual exhibition. Each year ASBA’s Annual International presents the genre’s most established artists alongside emerging talents from around the world. Chris Murtha, Curator at The Hort calls botanical art “…a genre that is pushing well beyond scientific illustration and coming into its own.”
Artists Carrie Di Costanzo, Ingrid Finnan, and Monika deVries Gohlke will share their personal stories behind their work and offer a unique perspective on the work of their peers. They will be joined by exhibition juror Patricia Jonas, who will provide insight into the artwork selection process.
Registration for the “Last Look Walkthrough” can be found on Eventbrite.

Catalog cover image: Annie Patterson, Cynara cardunculus, Cardoon, watercolor on paper, © 2014, all rights reserved.
Catalogs for the exhibition can be purchased for $20.00 through ArtPlantae.
The New York Horticultural Society is located at 148 West 37th Street, 13th Floor, New York, New York. The 17th Annual International is on display through November 26, 2014.
Jurors Patricia Jonas, Marco Polo Stufano, and Catherine Watters selected 42 artworks out of 215 submissions from around the world. BAGSC members Joan Keesey, Lesley Randall, and Deborah Shaw have artwork in the exhibition, and Lesley Randall won the Brooklyn Botanic Garden Award for Drawing & Prints. The ASBA has posted the artwork and the artists’ stories behind each piece. Click on the links and on the ASBA website to see the artwork and read the artists’ stories.
by Deb Shaw

From top to bottom: Rosemary and Company, Series 33 Kolinsky Sable brush, #4; Escoda Reserva Kolinsky Sable Brush, #2; Winsor & Newton, Series 7 Kolinsky Sable Brush, #1. Photo by Deb Shaw.
I’ve been hearing rumors for the last couple of weeks that US Customs has released the Kolinsky brushes that have been locked away during the ban. I now have confirmation (sort of): the brushes that have been held have been released, but the ban is still in effect for future shipments. So, for art stores, it looks like there is a little relief on their long list of back orders, but no significant headway for future shipments.
Here’s what this means for us artists who want to order/buy Kolinsky brushes:
- Check your local and online art supply stores. You may find most standard watercolor brushes are now in stock, but not all brands. For example, Nate, from Dick Blick confirmed that Dick Blick now has the Winsor Newton Series 7 line (except for a couple of sizes, namely #10) in stock, as well as the Winsor Newton Series 7 Miniatures (except for #5). They do not, however, have the Rafael 8404 and 8408 in stock. [NOTE: If you are purchasing anything from Dick Blick, click on the Dick Blick website FROM the ASBA website. The ASBA gets credit and donation support from Dick Blick.]
- You can still purchase Kolinsky brushes online from select vendors in the UK and elsewhere, including Rosemary and Company, L. Cornelissen & Son, and Ken Bromley Art Supplies.
Calling All Brush Reviews
I’ve received a lot of enthusiastic reviews of different brushes that fellow artists have been trying out, including other sables, synthetics, you-name-it. Some have been in direct conflict (“love it” vs. “hate it”) Obviously, how we each use a brush determines how we feel about a particular brand and style.
I’d love to publish a synopsis of all our testing on watercolor brushes (with full credit of course). If you would like to participate, please email me, and be sure to include the following information:
- The name, product number, size(s) and where you purchased the brushes you are reviewing;
- What substrate you paint on: paper (brand name please), vellum, board, etc.;
- How you paint (wet washes, dry brush, etc.);
- Any other helpful information;
- How you want your name listed.
I’ll compile the information and publish the results (provided I get enough information) in early December.
Happy painting!
by Deb Shaw
John Cogley and Kathrine Taylor of Daniel Smith, gave a fascinating presentation on the pigments and processing methods they use to create Daniel Smith paints.

John Cogley, President/CEO and Founder of Daniel Smith, talks over some paint tests with ASBA Conference attendees.
How rocks become pigments
The multiple-step process begins with the Daniel Smith geologist adventuring out all over the world to search for mineral resources. Acquiring material is rife with problems: countries may decide they no longer want to export minerals; borders close; or mines run dry.
Sugilite, rhodonite, serpentine, ryanite, garnet and more—mountains of minerals arrive for processing. Many start out the size of a person’s torso. John explained that they fracture the rock, rather than grind it. His analogy was the difference between table sugar and powdered sugar: fracturing the rock until it is very fine keeps the crystalline structure intact, so it refracts light. Grinding would make the pigments dull and lifeless, like powdered sugar.
The challenge in creating quality pigments is overcoming the electric static of the individual particles, which makes them want to attract and clump together. This natural tendency to agglomerate creates pigment “lumps,” which leave hot and cold spots in the paint application. Multi-stage machine processing enables the pigments to lay in an orderly row, giving maximum refraction and maximum color.
The rocks are squeezed in the first machine until they fracture. Successive machines gently hammer them, and then roll them through balls, until they are the size of grains of rice. From there, they are run through heavy, hardened steel rollers. The hardened steel rollers have a hardness of 7, and some of the rocks have a hardness of 8 or 9; so the massive rollers need to be replaced annually (at least!). Each roller costs upwards of $50,000.00.
Once the pigment is at its final size, the mineral is run through various solutions. Specific gravity separates out the impurities, and the pure pigment is ready to be mixed with gum arabic and packaged.
Daniel Smith only uses medicinal grade gum arabic for binding, as it is consistent in quality.
It’s all about the size of the particles
Different minerals are reduced to different sizes, depending on the color desired. For example, French Ultramarine has larger pigment particles than Ultramarine. This means that French Ultramarine particles have more surface area and will reflect more “red” back to the viewer than Ultramarine.
The smoother the pigment and the purer the pigment, the less granulation will occur when applying the paint.
Granulation, or reticulation occurs when three or more pigments in a color behave differently when applied to the paper. If you look at a greatly enlarged side view of a sheet of paper, it’s apparent that it isn’t smooth and flat, but has hills and valleys. The pigments in a granulating color will separate out and settle out at different points on the paper, based on the specific gravity or density. The lightest pigment (frequently synthetic pigments) will “float” and stay on the top of the hill. The next heaviest pigment might flow downhill a little further, settling in on the “side” of the hill. The very heaviest pigment will sink all the way to the valley and remain there. The purer the pigment and the smoother the paper, the less granulation there will be.
Synthetic colors, such as the Quinacrodones, are very pure, very smooth, and have exceptional lightfastness. They are used by (and dictated by) car and other industries. In the Quinacrodone family, different colors are created by moving the bonds around in the molecule.
Testing the paint
The Daniel Smith chemist carefully tests each batch of paint. An equal amount of pigment and distilled water (one part pigment to one part distilled water) is mixed and one full brush load is then painted on a sheet of cold pressed watercolor paper. The brush is then fully loaded once more, and stripes are painted on the lower portion of the paper to see each successive reduction in color strength as the paint is used up.
Gifts!
Daniel Smith generously handed out brochures showing their watercolor lines; a “Try It” sheet of 66 dots of watercolor; and nuggets of Turquoise from Arizona. Treasures!

Different pigment and mixing tests on cold pressed paper, and turquoise nuggets from Arizona. Photo by Deb Shaw.
TIPS
If your cap breaks
Call or email Daniel Smith. They’ll send you more, no charge.
If your tube of paint dries up
1) Unfold and open the crimped end; 2) add a little distilled water at a time until you get the desired consistency; 3) if desired, you may also add a little bit of gum arabic; 4) you may also add a tiny drop of glycerin.
If you have any questions/problems with that one tube of paint
There’s a batch number at the bottom. Include that number with your comments or questions and the folks at Daniel Smith will be able to look up that batch and help you out.
Use distilled water
Tap water is pure and safe to drink, but contains chemicals and minerals which may affect the paint and how it behaves. Use distilled water to ensure you have as much control as possible.
by Beth Stone, posted by Deb Shaw
Here are just two pictures from a beautiful fall day spent at the Plains Conservation Center. Our most informative and enthusiastic tour guides were Martha Narey and Susan Smith. Martha provided each of us with a booklet including background about the conservation center, plant lists…and several pages of various drawing papers! In addition to the last few wildflowers of the season, we saw a lot of wildlife. There were prairie dogs, rabbits, coyote, pronghorn (similar in appearance to antelope), prairie dogs, an immature bald eagle, a golden eagle, hawks, great horned owls and prairie dogs.
The Plains Conservation Center exists to bring the natural wonder of the prairie into the realm of personal experience by: preserving a remnant of the eastern Colorado High Plains, educating the public about its natural and cultural heritage and nurturing sound conservation and environmental ethics.
by Gayle Uyehara, posted by Deb Shaw
Carol Govan’s Thursday “Wow, Botany Is Exciting” workshop really was that, WOW!
Carol contacted the class participants a few weeks earlier and sent us a very informative email and handout with all the technical terms we would learn so we wouldn’t have to stop and look them up during class. She also told us to relax but hang on tight because the workshop was structured from her 8-week course at Wellesley College Botanic Gardens. In three hours we learned the parts of a plant and their function in a humorous, informative manner that only Carol can deliver.
After we learned the names of the plant parts, we quickly sketched the specimen before us and labeled them. “Quick” being the emphasis and it was amazing how many things we had captured in our short observation. What a treat this class was!
Carol’s botany workshop built on this newbie’s vocabulary in a manner that will allow me to pick up a book and know what to look for in the field. She pointed out several older reference books because of their descriptive words of the plant rather than their non-visual clues like DNA and chemical properties.
Toward the end of class, Carol demonstrated how she uses sketch paper, hard pencil and grid frame to capture a quick but accurate gesture composition of a plant; keeping in mind the negative spaces she creates. The grid was only a few marks on paper and frame but gave her a visual clue about placement on the paper. From there she does a quick contour drawing which she will work with the rest of the time—while making any corrections to her gesture drawing. The color she adds as part of her sketch is made from a three-color palette made up of the primaries. She mixes up her watercolor swatch on a white plate to include the shadow and highlights.
Carol finished up this delightful workshop by telling us how she uses her sketches to create a composition and showed us examples of her finished pieces.
Let me mention again what a treat this class was!
I am sure that I will think of her many times as I continue on my botanical art journey. Thank you Carol!
by Beth Stone, posted by Deb Shaw

Laurence Pierson demonstrating her beautiful egg tempera technique. The camera/light in the foreground is the one mentioned in the article. Photo by Beth Stone.
At the Denver Botanic Gardens, Laurence Pierson demonstrated egg tempera on gesso panel. She mixes dry pigment with water using a colour shaper, adds a bit of alcohol if the particular pigment requires it to dissolve, and mixes in a bit of egg yolk.
Laurence’s background is in painting icons, typically on wood panel prepared with gesso and often including gold leaf. She applies her skill with tempera to botanical subjects with beautiful results!
The camera used in this photo seemed particularly effective for teaching, see the Ladibug DC192 on http://www.lumens.com.tw/product_1.php?big_id=1
by Deb Shaw
Some of our BAGSC members are lucky to stay for the post-conference workshops, but many of the rest of us have gotten home. We had a great response to our “Live from the Conference” postings; many sent emails letting us know how much they enjoyed the posts. I’m sorry I was struggling with a technology meltdown and couldn’t get all of them up sooner. I believe I now have the technology (mostly) behaving, and will get things posted as quickly as possible.
![[Brush holder] The Rocky Mountain Chapter made (yes, HANDMADE) pine brush holders for each of the conference attendees. Photo is of my new brush holder, happily ensconced in its new home on my work table. Photo by Deb Shaw.](https://bagscblog.com/wp-content/uploads/2014/10/brushholderfront.jpg?w=225&h=300)
[Brush holder] The Rocky Mountain Chapter made (yes, HANDMADE) pine brush holders for each of the conference attendees. Photo is of my new brush holder, happily ensconced in its new home on my work table. Photo by Deb Shaw.
Thank you to the Rocky Mountain Society of Botanical Artists and ASBA for all your hard work. And thank you to the roving BAGSC reporters who sent in stories and photos. If you have any more, keep ’em coming and I’ll get them posted. For readers; lots more to come.
See you next year at the Weird, Wild & Wonderful Symposium at the Huntington in the Summer, and at the ASBA Annual Meeting and Conference in Miami in October.
Happy painting!
![[Brush holder back] Susan Fisher explained that the wood came from pine trees harvested after being killed by Mountain Pine Beetles (Dendroctonus ponderosae), native to the forests of western North America. The blue color of the wood is the result of staining from the beetle infestation. Libby Kyer designed the logo on the back, which was also on the water bottles donated by Libby and her husband. Photo by Deb Shaw.](https://bagscblog.com/wp-content/uploads/2014/10/brushholderback.jpg?w=225&h=300)
[Brush holder back] Susan Fisher explained that the wood came from pine trees harvested after being killed by Mountain Pine Beetles (Dendroctonus ponderosae), native to the forests of western North America. The blue color of the wood is the result of staining from the beetle infestation. Libby Kyer designed the logo on the back, which was also on the water bottles donated by Libby and her husband. Photo by Deb Shaw.
by Deb Shaw
The ASBA announced their annual awards last night at the closing banquet. Tania Marien was presented with the James White Service Award for her dedication to botanical art, in recognition of her distinguished support of botanical art.
Lesley Randall was presented with the ASBA Scientific Illustrator Award for Excellence in Scientific Botanical Art, in recognition of her outstanding achievements as a scientific illustrator.
George Olsen was presented with the ASBA Diane Bouchier Artist Award for Excellence in Botanical Art, in recognition of his outstanding acheivements as a botanical artist.
Unfortunately, the three award winners were not present to receive their awards in person. When Tania and Lesley’s names were announced, however, the BAGSC table cheered loud enought to hear back in Southern California. Congratulations to the award winners for richly deserved recognition!!
by Beth Stone, posted by Deb Shaw
The Techniques Showcase featured three artists covering a very broad range of approaches: Hillary Parker, Ann Swan, Kelly Leahy Radding.
Hillary Parker shared her artistic problem-solving approach to very large format botanical watercolors which most of us would surely consider impossible! First was a driftwood commission on 40 x 60 inch, 300 lb cold press paper. The second was a 9 foot long (!) watercolor of a stone wall with a foreground of woodland plant silhouettes worked in masking fluid. Can you imagine fitting such a massive work in your studio? Then consider how you would maneuver yourself and your paints around to work on it!
Ann Swan completed a kiwi botanical in front of our eyes as just a portion of her wonderful segment of the Techniques Showcase. The seemingly magical techniques Ann demonstrated included: colored pencil layering strategies; exploiting colors that resist adhesion of subsequent layers (for example, creating veination); use of alcohol-based solvent or baby oil (actually not oil, but dilute paraffin) to blend and spread color; and embossing to create fine hairs for kiwi and pussy willows.
I’m told Ann’s blog is one to watch. She posted photos of the Chihuly glass sculpture exhibit currently at the Denver Botanic Gardens. http://annswan.wordpress.com
Finally Kelly Leahy Radding demonstrated the technique she used to paint the beautiful water lily she entered in the show’s Small Works exhibit. The water lily is painted with gouache on a dramatic black background. Kelley demonstrated her painting process with gourds. She shared a tip regarding both zinc white and the warmer titanium white. Both dry with a slight blue cast which can be counteracted by mixing in just a touch of yellow.
As a special additional treat to complete the Showcase, John Cogley, founder, President and CEO of Daniel Smith, spoke on the manufacture of pigment. The process involves fracturing/cleaving the crystalline materials rather than grinding them. It was great to see the actual mineral samples John brought including a beautiful, huge, piece of Lapis. John graciously answered audience questions: explaining that his company bought out all the Quinacridone close-out stock, so we will always be able to buy a consistent Quinacridone Gold; that we shouldn’t be concerned if Gum Arabic binder oozes from a newly opened tube, it’s just excess that rose to the top; and we should use distilled water in our painting work rather than introduce tap water impurities. Deb Shaw went to John’s lecture, and will include pictures in the next posting.



















