Mexican sunflower
Tithonia rotundifolia
RHS Plants for Pollinators

USDA zones2 to 11
SunNeeds full sun (6+ hours)
WaterHandles dry to moderate soil
Size4 to 6 feet tall2 to 3 feet wide
- Growth rate
- Rapid
- Habit
- Erect
- Bloom season
- Summer, autumn
- Bloom color
- Orange-red with yellow center disk
- Foliage color
- Green
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
Mexican sunflower (Tithonia rotundifolia) is an annual for borders, cut flowers, and pollinator gardens. It is not cold-hardy and will not survive freezing temperatures. This plant likes full sun and dry to average, sandy, loamy, or clay soil. It grows fast to 4 to 6 feet tall, with orange-red blooms around a yellow center disk. Butterflies, hummingbirds, bees, and birds visit the flowers. Deer tend to browse other plants first.
Pairs well with Zinnia, Lanceleaf coreopsis, and Montbretia.
Native range
North America, Central America, and Panamá.