Plant
- Tender perennial often grown as an annual
- 1-5' tall, varies by cultivar
Stem
- Opposite or whorled leaf arrangement
- Green or reddish-purple, varies by cultivar
Leaf
- 3-8" long, up to 10" with long petioles
- Simple, broadly ovate or divided into 2 or more sections
- Toothed edges
- Green or reddish-purple, varies by cultivar
Flower
- 2-3", double forms up to 12"
- Size, shape, form, color vary by cultivar
- Red, yellow, orange, pink, lavender, purple, white, bronze, bicolor, variegated
