1. Prepare painting tools: pencils, erasers, thin-line pens, paints, brushes, etc.

2. Choose a piece of paper suitable for drawing, and gently sketch the shape of the whole plant on it with a pencil.

3. Marking the characteristics of each part: Mark the characteristics of flowers, leaves, stems and roots with a thin-line pen, such as the number of petals, flower diameter, leaf size and shape.

4. Coloring: Use pigments or other colored painting tools to color the flowers and leaves of plants. You can refer to physical pictures or color samples to choose the appropriate color and application method.

5. Improve the details: redraw and polish the whole plant with a thin-line pen to make it more realistic and exquisite.

6. Record information: record the scientific name, Chinese name, family and origin of the plant on the plant record card, and attach the drawing date and the author's signature.