Creating wood texture in watercolor was our lesson for the week. My demonstration started by wetting the paper and laying in a wash of several shades of brown and grey. Letting that dry I fanned out a flat brush that had just a small amount of dark brown paint. By separating the hair into irregular gaps you can create a dry brush effect that works well for wood grain. Lay the brush out flatter than usual and drag the brush across the paper in the direction of the grain. After you have finished the wood grain texture paint in some knots with dark brown. Then paint some grain lines in the direction of the wood and go around the knots just like you have noticed in a piece of real wood. Paint in the gaps between the planks and let it dry thoroughly. Add any more detail necessary to make it look realistic. My last step was to scrape highlights into the paper with a razor blade. The wood texture highlights are visible in my demo painting shown here.
Everyone in the class worked on their own wood texture following along with my demonstration.

I had time to start a painting of a white rose. For the background I started by wetting the paper and putting in a wash in the corners of the paper letting the paint go into the flower in some areas. This is a great way to start a painting because you are getting some value onto the white paper and it suggests the background leaves. I like to paint white flowers with colorful shadows using new gamboge(yellow), cobalt blue and rose madder. Painting each petal at a time I worked wet into wet with those three colors. I added thalo blue to the cobalt for the darkest shadows. I demonstrated painting each color onto the petal using one stroke for each color. This way the colors mix on their own. If you continue brushing the colors will mix together into undesirable colors(brown, sometimes referred to as mud). It takes practice to paint with one stroke but it can be a fun way to see the colors blend on the paper. I will continue the painting of the white rose at the next class.

P.J. Cook