In a manner of speaking, yes. The cantrip does allow you make a flower or leaf bud instantly bloom. It does not, however, allow you to create flowers from whole cloth – merely make one bloom ahead of schedule. However, Druidcraft can also allow you to create “falling leaves” as a sensory effect. While the text isn’t specific, the inference is that these are real, physical leaves rather than an illusion. With the DM’s permission, flower petals or whole blooms could likely be substituted for leaves.