St. Albert Painters Guild

Botanical Watercolour Workhop

  • 04 Nov 2018
  • 9:30 AM - 4:00 PM
  • Painter's Studio - St. Albert Place
  • 2


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Botanical Watercolour Workshop

with Rayma Peterson

Rayma Kempinsky Peterson is a Canadian botanical artist, botanist and art teacher. Her specialty is painting plants in their native habitats, including unique close up scenes showing people the breathtaking beauty that is underfoot.

Rayma’s workshop will have us working with detailed photos of plant life from scenes from our own gardens or wild botanical habitat. We may use our own photos or one that Rayma will provide. Participants are asked to come to the workshop prepared with their pre-drawn image so that we can begin immediately to learn some of Rayma’s exquisite watercolour techniques.


Introduction—Ecological Watercolours

Draw on composition before coming to class.

Choose your colour palette

Start to paint

  • Wet into Wet
  • Layering and Glazing

Continue to work, drawing and painting

Negative and positive shapes

Texture medium


  • Stroke
  • Stipple
  • Hatch                  

Softening edges


Supply List

PRIORITIES: use good watercolour paper, primary and secondary colours (red, blue, yellow and green, violet, orange) and good brushes for the best results. Remember, the better your pigments and paper the better your painting will be. You will grow in leaps and bounds if you use good colours and paper.

These are the materials that I use personally. Not all are necessary for this workshop, but are just suggestions for your reference.

  1. HB or B pencil, eraser.
  2. My watercolour paint list: (I usually use Winsor & Newton, Daniel Smith, Lukas, or MaimeriBlu tube watercolours, professional grade)
    • French Ultramarine Blue
    • Phthalocyanine Blue (Winsor Blue)
    • New Gamboge or Aureolin
    • Burnt Sienna
    • Lemon Yellow
    • Sap Green
    • Olive Green
    • Daniel Smith Transparent Pyrrol Orange
    •  Lukas Geranium Lake Bluish (This is a colour that is common in fuchsia-coloured flowers but almost impossible to mix on your own.)
    • Alizarin Crimson
    • Mauve
    • Colours I use, but not as much
      • Winsor Violet
      • Cadmium Red
      • Cobalt Blue
      • Viridian
      • Sepia
      • Indigo
      • Permanent Rose
      • Hooker’s Green
      • Quinacridone Gold
  3. Watercolour paper: Artistico Fabriano soft press 140 or 300 lb, or Arches cold press 140 or 300 lb. I cut these down to my desired sizes. Some botanical artists use hot press.
  4. Watercolour brushes sizes 4 to 18/0.
  5. Water container
  6. Tissue/kleenex
  7. Your own photographs to be used as reference.

I use the Stephen Quiller colour wheel. This is the best colour wheel I have ever used as he has researched where each pigment lies along the wheel. This helps you pick out perfect complements or triads. It also assists in picking out good colour harmonies for a unified painting.

Come with your composition drawn onto your good watercolour paper. I suggest something like 7 x 11” or 9 x 12” for the purposes of this workshop. I generally use a B pencil and draw lightly. When drawing on your composition keep in mind your centre of interest.

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