Chater's Double Hollyhock Seeds

I started these hollyhock last year from seed. They produced very nice, strong seedlings and they grew all last year (2019), overwintered and this spring grew fast with large strong leaves and sending up multiple flower stalks. The problem was that when they bloomed, none were doubles as shown on the packet. I got one very pale yellow color and two white. Each color had about two outer rows of petals and long stamens with a lot of pollen, but only the white seemed to try to produce the full fluffy interior petals. The inner petals on the white ones were very few and just a few curly petals. A positive is that the bees are enjoying visiting the blooms and they plants are healthy. According to the picture on the packet, these should resemble small peony type blooms but did not. I love Botanical Interests seeds and will continue using your seeds, but for some reason this hollyhock just did not produce as described.