The most common and recognizable of the group of water-retaining plants called succulents is the cactus. This drought-resistant plant, if outside, can get moisture from dew or the air. As a houseplant, it requires very little maintenance and is perfect for those who forget to water their plants. Even as children, many of us learned to be mindful of the spines or prickly thorns that cover the plant. Keeping a distance and enjoying only with our eyes makes the cactus a perfect subject for a watercolor.

Steps

  1. 1
    Do some research to find a picture to use as a reference.  If you have an actual cactus, you can use it as inspiration. Many discount stores have plastic cacti so if you purchase one, it will last forever.
  2. They grow wild in arid climates and can get as tall as a house. Smaller ones are equally impressive as to their varied and unusual shapes.
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  3. Any type of watercolor will work for this project. All types need to be activated, so carry some water from a brush to each pad of color. If using tube paints, squeeze out the primaries and secondary colors onto a palette or white plastic plate and add a few drops of clean water to each color.
  4. An assortment of brushes, a piece of any size or shape watercolor paper taken from a pad, a water container, tissues for controlling drips and an uncluttered surface to work on.
  5. You can show scale by what is around your cactus. If it is a big one, including mountains, sage brush or a bleached animal skull can give an idea of its size.
  6. A row of small cactus plants can be shown sitting on the window sill, table or shelf.
  7. 7
    Do an initial wash over the cactus, omitting details. Dilute your color with water on the palette. Test the intensity of your mixture on a scrap of watercolor paper. Remember, watercolor dries lighter by 20-30 percent. This is never a problem as a watercolor can be done in layers once it is completely dry.
  8. You can be creative and mix various colors in a work of art.
  9. Do this by washing a line of darker tone along one side.
  10. A small, round, pointed brush will only take you so far. Use a fine point Sharpie for the tiniest details and thorns.
  11. 11
    Add dramatic gray shadows. This will increase the illusion of depth and drama to the piece. Darkening one side of the cactus gives the illusion of roundness to the cactus.
  12. Decide what parts you want to alter, intensify or delete. Allow the painting to dry again. Using a hairdryer helps speed things up.
  13. With art you can do what you want. Perhaps you could paint more than one on a window sill.
  14. Make whatever changes you wish. To delete something, use a scrub brush or a piece of white kitchen sponge called a Magic Eraser. Let the clean areas dry before painting onto them again.
  15. Have the shadows all going in the same direction. Keep them transparent.
  16. 16
    Take pride in your work by hanging it on the wall. The beauty of hand painting is very alluring. Your art will draw people in and you will be sharing your innermost thoughts and ideas. You can even travel to parts far away and unknown through your art.
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      Tips

      • Reduce the size of your artwork on a copy machine. Print up a few, trim to size and with a glue stick paste the images on blank note cards. Use these note cards with a cactus motif for special occasions by adding your own greetings inside.
      • Make a bundle of the cards, tie with ribbon or colored string and give as gifts.
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      Warnings

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      Things You'll Need

      • Watercolor paper
      • Watercolors, any type
      • Brushes for watercolor, a pencil with an eraser
      • Fine line Sharpie or other black fine line marker
      • Reference photos
      • Blank note cards with envelopes (optional)

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