This is a very pretty plant that has done very little in my garden. I don't seem to have good luck with Petit plants, they all sort of putter along with almost no increase or bloom. Planted in April 2019 in the front bed, I didn't see bloom until July of 2021. Unlock the Stars produced 6 flowers from July 11-21. The following year, I only had four flowers, July 15-21.
Maybe this is because this flower is in the crowded, underlit Front Bed but I've never been happy with the plant. The flowers are beautiful when you get them though.