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Vernonia noveboracensis (New York flat tops)
1 hour care
per year
per year
2m
Max height
Max height
0.6m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Vernonia noveboracensis
Other names
New York flat tops, New York ironweed
Genus
Vernonia Vernonia
Species
V. noveboracensis - V. noveboracensis is an upright, deciduous perennial with stiff, upright, branching stems bearing narrowly lance-shaped, pointed, sometimes toothed, dark green leaves and open, branched cymes of thistle-like, reddish-purple flower heads from late summer into autumn.
Vernonia noveboracensis is: Deciduous
Habit
Erect, Branching
Flower
Reddish-purple in Summer; Reddish-purple in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
Slugs Slugs
Diseases
Generally disease free
General care
Pruning
Cut back in late spring to create a more compact habit. Deadhead regularly to prevent unwanted seedlings.
Propagation
Self-seeds readily. Deadhead to prevent unwanted seedlings.
Propagation methods
Seed, Division
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Where to grow
Vernonia noveboracensis (New York flat tops) will reach a height of 2m and a spread of 0.6m after 2-5 years.
Suggested uses
Prairie planting, Low Maintenance, Cottage/Informal, Beds and borders, Wildflower, Wildlife
Cultivation
Best in humus-rich, fertile, moist, slightly acid soil in full sun but tolerates a wide range of soil conditions. Flowers attract butterflies.
Soil type
Clay, Loamy
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Vernonia noveboracensis
Other names
New York flat tops, New York ironweed
Genus
Vernonia Vernonia
Species
V. noveboracensis - V. noveboracensis is an upright, deciduous perennial with stiff, upright, branching stems bearing narrowly lance-shaped, pointed, sometimes toothed, dark green leaves and open, branched cymes of thistle-like, reddish-purple flower heads from late summer into autumn.
Foliage
Deciduous
Habit
Erect, Branching
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Colour
Flower
Reddish-purple in Summer; Reddish-purple in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
Diseases
Generally disease free
General care
Pruning
Cut back in late spring to create a more compact habit. Deadhead regularly to prevent unwanted seedlings.
Propagation
Self-seeds readily. Deadhead to prevent unwanted seedlings.
Propagation methods
Seed, Division
Monthly care advice
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Where to grow
Vernonia noveboracensis (New York flat tops) will reach a height of 2m and a spread of 0.6m after 2-5 years.
Suggested uses
Prairie planting, Low Maintenance, Cottage/Informal, Beds and borders, Wildflower, Wildlife
Cultivation
Best in humus-rich, fertile, moist, slightly acid soil in full sun but tolerates a wide range of soil conditions. Flowers attract butterflies.
Soil type
Clay, Loamy
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5
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Vernonia noveboracensis (New York flat tops)
Vernonia noveboracensis (New York flat tops)
| This plant likes... | Garden match | |
| Soil types: | Clay, Loamy | Tell us... |
| Soil drainage: | Moisture-retentive, Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
ARTICLES WITH THIS PLANT
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