That is a rather nice looking finch. Here the finches love Sunflower and Bachelor Buttons, ie.e Cornflower.
Had some challenges with my Savia Coccinea and Purple Comeflower, first time growing both for me, both started from seed. All the Savia Coccinea started well, but all with the excpetion of a few struggled from about mid growth on. Not 100% on what the issue was, once they got about 1 foot they would go spindly and thin, then just kind of wither away. I would get a first set of blooms but that would be about that. Still neeed to try and understand what happened here. I think a little more nutrients might have been better too.
Good start with the Purple Coneflower too, I think the issue with the Purple Coneflower was too heavy of a soil - poting mix. I discovered this (I think) by lifting the pots a day or so after watering. The Purple Coneflower pots (about 1 gal size) were always much heavier, retainig much more moisture, to much I think. That might be a good thing for some plants, but I don't think so for Purple Coneflower. They woulkd brown and died.
I tried different potting mixes (say regular versus patio type which is a little heavier) and variations of such as adding perlite, fertilizer. Potting soil gets expensive when your buying bags every few weeks, so in an effort to spend a litte less I tried different combinations.
The good news is a few of each were sucessful and there is always next year. A few did make it into the yard asnd one of the Purple Coneflowers is now blooming. Like wise with the Savia Coccinea, a couple made it into the yard, one is doing well and just Saturday there was a Hummingbird at it and that was the point, so sucess! Just on a smaller scale than I had hoped.
PS
I gues the biggest disappointment in general was overfertilizing 45 4" pots that I had just transplanted seedlings to. In making the potting soil mix I added too much fertilizer and post transplant they all burned up within a week
That was a live and learn mistake that will not happen again.