Zinnias that I have started from seed last February are just spectacular! So many flowers and so tall, they are taking over our deck stairs and had to be tied because they were spreading so much.
We leave the spent and dried flower heads on because American Goldfinches just love the seeds. They are quite acrobats, hanging upside down from those small flower heads. In addition to Zinnias seeds I give them sunflower heads from our branching sunflower. When the head turns brown I cut it and stick it into flower box on our deck railing. Interesting thing is that only females and immature males will feed oh sunflower and only mature males feed on Zinnias, for whatever reason. I just can’t figure out why.