1. You can have dried flowers if they are moldy.

2. When the dried flowers are moldy, you can scrub them with rice washing water first, and then put them in the microwave oven to dry at low heat, preferably once every 3 seconds, and then turn the petals over and repeat them.

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

4. Generally speaking, there are three kinds of flower materials commonly used for dried flowers: lumpy flower materials which are used as main flowers, linear flower materials which express the sense of lines in works, and decorative filling flower materials which are used to make up space and embellish pictures and enrich works. The selection of flower materials requires dark series flowers with just open and mature flowers, tough texture, small and thick petals and small and medium-sized flowers; The collection of leaf materials requires thick grass leaves with thick leaves, rough feel, easy shaping and not easy to curl, good texture flexibility, and stiff but not brittle; The collection of branches, stems and other materials requires good shape and quality and reasonable selection according to different uses.