Rose of Sharon can sometimes spread aggressively by seed. A few varieties have been bred to be low-seed or no-seed to combat this problem. ‘Sugar Tip’, ‘Pollypetite’, ‘Azurri Blue Satin’, and ‘Purple ...

However, it's important to know before planting a rose of Sharon that many cultivars have a nasty habit of dropping seeds ...

To some it is known as old-fashioned Althaea, while to most people it is known as Rose of Sharon. The plant was ... ranges from solid colors of white, red, purple, mauve, violet blue, or bicolored ...