Life Span
Perennial
Perennial
Type
Perennial
Tree
Origin
Southeastern United States, North-Central United States, Central United States, South-Central United States, Southwestern United States, Texas, Canada, Mexico
North America
Types
Ratibida columnifera
Bergmann's Elm, Chestnut-leafed Elm, Hangzhou Elm
Number of Varieties
25175
0
40000
👆🏻
Habitat
Dry areas, Prairies, Rocky areas, rocky outcrops
Woodland Garden Canopy
USDA Hardiness Zone
3-103-9
0
99
👆🏻
AHS Heat Zone
10-1
9-1
Sunset Zone
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
30.00 cm3,900.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm3,700.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Purple, Burgundy, Light Green, Brown
Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Tan
Leaf Color in Spring
Light Green, Gray Green
Light Green
Leaf Color in Summer
Light Green, Gray Green
Dark Green
Leaf Color in Fall
Light Green, Gray Green
Light Yellow
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Subulate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun
Growth Rate
Fast
Fast
Type of Soil
Loam, Sand
Loam
The pH of Soil
Neutral
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer, Late Summer
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Pollution
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Budding, Grafting, Seedlings, Semi-hardwood cuttings, Softwood cuttings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Water in morning to avoid prompting diseases
Average Water Needs, Do Not over Water, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun
Pruning
Cut or pinch the stems, Pinch Tips, Remove damaged leaves, Remove dead branches, Remove dead flowers, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer, Apply N-P-K
Complete balanced fertilizer, fertilize in spring
Pests and Diseases
Pests and diseases free, Red blotch
Red blotch
Plant Tolerance
Drought, Dry Conditions, Dry soil, Full Sun
Pollution
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Birds, Butterflies
Allergy
Rhinitis
Pollen
Uses
Aesthetic Uses
Borders
-
Beauty Benefits
-
Good for skin and hair
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Nesting sites for birds, Shadow Tree
Plant Benefits
Medicinal Uses
Analgesic
Antispasmodic, Astringent, Birthing aid, Haemostatic, Salve
Part of Plant Used
Flowers
Bark, Fibre, Leaves
Other Uses
Can be made into a herbal tea, Used in making tea
Container, String, Used for woodware, Used in paper industry
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cutflower, Mixed Border, Wildflower
Feature Plant, Shade Trees, Street Trees
Botanical Name
RATIBIDA columnifera
ULMUS americana 'Augustine'
Common Name
Mexican Hat
American Elm, Augustine Elm
In Hindi
Mexican Hat
American Elm Tree
In German
Mexican Hat
Amerikanische Ulme
In French
Mexican Hat
Américaine Elm Tree
In Spanish
mexican Hat
Olmo Americano Árbol
In Greek
Mexican Hat
American Elm Tree
In Portuguese
Mexican Hat
Árvore de olmo americano
In Polish
Mexican Hat
Amerykańska Elm Tree
In Latin
Mexicanus Hat
Latin ulmo
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Urticales
Family
Asteraceae
Ulmaceae
Genus
Ratibida
Ulmus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
146
1
27800
👆🏻