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Tithonia rotundifolia (Mexican sunflower)
1 hour care
per year
per year
2m
Max height
Max height
0.3m
Max spread
Max spread
1 year
To maturity
To maturity
Plant details
Botanical name
Tithonia rotundifolia
Other names
Mexican sunflower, Mexican marigold, Goldflower of the Incas , Tithonia speciosa
Genus
Tithonia Tithonia
Species
T. rotundifolia - T. rotundifolia is a robust, upright, branching annual with long, triangular to ovate, lobed or unlobed, toothed, dark green leaves, hairy beneath, and, from late summer into autumn, bright orange to orange-red flowerheads with yellow centres.
Tithonia rotundifolia is: Deciduous
Habit
Branching, Upright
Flower
Orange-red, Orange in Summer; Orange, Orange-red in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
General care
Pruning
Deadhead to prolong flowering. Cut back after flowering.
Propagation
Sow seed at 13-18C in mid- to late spring or in situ in late spring.
Propagation methods
Seed
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Where to grow
Tithonia rotundifolia (Mexican sunflower) will reach a height of 2m and a spread of 0.3m after 1 year.
Suggested uses
Beds and borders, City, Cottage/Informal, Flower Arranging, Sub-Tropical
Cultivation
Plant in well-drained, moderately soil in a sunny, sheltered position. May require staking. Heat tolerant. Water freely during dry periods. Growth is stunted in cool, overcast conditions.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor heated (H1), Tender in frost (H3)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Tithonia rotundifolia
Other names
Mexican sunflower, Mexican marigold, Goldflower of the Incas , Tithonia speciosa
Genus
Tithonia Tithonia
Species
T. rotundifolia - T. rotundifolia is a robust, upright, branching annual with long, triangular to ovate, lobed or unlobed, toothed, dark green leaves, hairy beneath, and, from late summer into autumn, bright orange to orange-red flowerheads with yellow centres.
Foliage
Deciduous
Habit
Branching, Upright
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Colour
Flower
Orange-red, Orange in Summer; Orange, Orange-red in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
General care
Pruning
Deadhead to prolong flowering. Cut back after flowering.
Propagation
Sow seed at 13-18C in mid- to late spring or in situ in late spring.
Propagation methods
Seed
Monthly care advice
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Where to grow
Tithonia rotundifolia (Mexican sunflower) will reach a height of 2m and a spread of 0.3m after 1 year.
Suggested uses
Beds and borders, City, Cottage/Informal, Flower Arranging, Sub-Tropical
Cultivation
Plant in well-drained, moderately soil in a sunny, sheltered position. May require staking. Heat tolerant. Water freely during dry periods. Growth is stunted in cool, overcast conditions.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor heated (H1), Tender in frost (H3)
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Indoor heated (H1), Tender in frost (H3) | Tell us... |
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