Mexican sunflower, Tithonia rotundifolia, is a plant native to Mexico and Central America. It's a fast-growing annual that blooms in just one season. Warm-weather annual that thrives in full sun and fair, dry to medium, well-drained soils. Summer heat is beneficial to plants. Plants can grow in a variety of soil conditions. Rich soils grow weak-stemmed plants with a lot of foliage, so stay away from them.
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Scientific Name: Tithonia Rotundifolia
Common Name: Mexican Sunflower
Plant Type: Annual
Zone: 2 to 11
Native Range: Mexico and Central America
Full Growth Height: 48-72 "
Width in Across: 24-36 "
Exposure: Full Sun
Blooming Season: July to September
Pollinators: Butterflies, Humming Birds
Flower Color: Orange-Red with Yellow Center Disk
Tolerate: Drought, Deer, Dry Soil, Heat
Water Requirement: Dry to Medium
Soil Type: Chalk, Sand, Loam, Well-Drained
Soil pH: Alkaline, Neutral
Uses: Fresh Cut Flowers, Cutting Gardens, Gravel Gardens, Cottage Gardens