The Mallow plant(marshmallow comes from this plant) looks like hibiscus but is larger. The Rose of Sharon's flowers look like the Woody Hibiscus. Hibiscus is tropical and adds flair to your surroundings.
The mallow has the same appearance as a hibiscus. It is usually slightly larger than the hibiscus, though. Also, the flower cups are more shallow since they are a bit flatter. The flowers are deep pink or purple with dark lines. They grow easily in my experience; their also pretty resiliant in almost any soil.
Mallow looks extremely like Hibiscus. The flower is a great deal larger, 4 to 10 inches across, flatter, and not "cupped" like hibiscus, not as many colors as hibiscus.
One plant that looks like a hibiscus is the mallow plant. The flowers of the mallow plant tend to be much larger then that of a hibiscus. The mallow plants flowers are yellow or pink.
Mallow looks like hibiscus, though it is more or less larger. Its cup is also not much deep but flatter. Its color is mostly pink or yellow. Marshmallow comes from this plant only.
Rose of Sharon is a perennial resembling the hibiscus flower. This plant/bush comes in a variety of colors, white, pink and purple are the dominant colors.
