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PlantSnap
Plant Care
Mexican sunflower
(Tithonia diversifolia)
Also Known As
Mexican sunflower, Tree marigold, Nitobe chrysanthemum
About This Plant
Tithonia diversifolia is a species of flowering plant in the family Asteraceae. It is a fast-growing perennial shrub that can reach up to 3-4 meters in height. The plant produces bright yellow or orange flowers that bloom in clusters from mid-summer to early fall.
Plant Care Instructions
Outdoor Size Range
3-4 meters (9-12 feet)
Light Requirements
Mexican sunflowers prefer full sun, but they can tolerate partial shade.
Humidity Needs
Mexican sunflowers prefer dry air and do not require high humidity.
Fertilizing Schedule
Fertilize the plant once a month during the growing season with a balanced fertilizer. Avoid overfertilizing, as this can lead to excessive foliage growth and reduced flower production.
Pruning Guidelines
Prune the plant in early spring to encourage bushier growth and more flowers. Remove any dead or damaged branches.
Common Pests and Diseases
Mexican sunflowers are relatively pest-resistant, but they can occasionally be affected by aphids, spider mites, and whiteflies.
Indoor Size Range
Not suitable for indoor cultivation
Watering Schedule
Water the plant regularly, especially during periods of drought. Make sure the soil is well-draining and does not become waterlogged.
Temperature Range
The plant can tolerate a wide range of temperatures, but it prefers warm temperatures between 20-30°C (68-86°F).
Growing Season
Mexican sunflowers can be grown year-round in warm climates, but they are typically grown as annuals in cooler climates.
Growing Difficulty Level
Mexican sunflowers are easy to grow and require minimal care.
USDA Hardiness Zones
Mexican sunflowers are hardy in USDA zones 9-11.
Did You Know?
In traditional medicine, the leaves and flowers of the Mexican sunflower are used to treat a variety of ailments, including fever, cough, and gastrointestinal disorders.
