Not known to be one of the easiest plants to grow, it poses a challenge to gardeners as it is immensely rewarding when their large mophead of flowers are in bloom. The plant needs to be well-watered and needs frequent fertilization to look its best and in my opinion, prefers a semi-shade position in tropical Singapore to protect it from the strong scorching rays of the sun. Anyway, even the most well-grown ones here show bacteria spots on their leaves.
A link on this ornamental shrub is attached below: