Answer: The mature size can vary somewhat depending on the cultivar, but these are generally quite small with a height of about a foot and an eventual spread of about three feet. The bloom period is fairly long although it will of course depend on the weather each year. The winter bloomers will be covered with snow if you have a snowy season. These shrubs are not easy to grow well in areas such as yours where summers are hot and humid. Give them a spot in full sun with good air circulation. They require perfect drainage to survive the winters, so a sandy soil is best; you may need to create a special raised bed or plant them on a slope. The soil should be acidic as well. Protection from winter wind can also be helpful. These need little pruning except to remove any winter damaged branches. Fertilize lightly using a slow release granular fertilizer for acid loving plants such as Hollytone, read and follow the label directions. I hope this helps.
Q&A Library Searching Tips