I have plenty of blooms but they do not fully open. What is the problem?
Indian Hawthorn Blooms
Certified GKH Gardening Expert
It could be that it is lacking in phosphorus and potassium. I would recommend applying an all-purpose fertilizer every spring for proper development through the year. This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/shrubs/indian-hawthorn/growing-indian-hawthorn.htm