2. If the dried flowers are moldy, you can first scrub them with rice washing water to remove the green mold, then put them in the microwave oven and dry them with low fire, preferably once every 30 seconds, and then turn the petals upside down and repeat.

3. If you can't take it off, take off the moldy petals.

4. Generally speaking, there are three kinds of flowers commonly used in dried flowers, namely, block flowers as the main flowers, linear flowers to express the sense of lines in the works, and decorative filling flowers to make up for the space and decorate the pictures to enrich the works. The selection of flower materials requires dark series flowers, which are just open and mature, tough in texture, small and thick in petals and small and medium in flowers; The collection of leaf materials requires that the grass leaves are thick, rough to the touch, easy to shape and not easy to curl, and the texture is elastic, hard and not brittle; The collection of branches, stems and other materials requires good shape and quality, and reasonable selection is made according to different uses.