The regal geranium is known by several names: Regal geranium, Martha Washington or Lady Washington geranium or Pelargonium. The regal geranium produces an even wider array of colors.
Description of regal geranium: These plants have large, open-faced flowers above light green, pleated leaves. Exceedingly colorful, they include clear colors of pink, red, white, lavender, and burgundy, with the flowers of many varieties marked with bright patches of contrasting colors.
Growing regal geranium: Regal pelargoniums like mild weather and sunny days to perform their best. Where nights do not go above 60 degrees Fahrenheit, they will continue blooming all summer. In warmer areas, they will take a midsummer hiatus until cooler nights prevail in the fall. Plant in the garden in the spring when the weather has settled.