Life Span
Perennial
Perennial
Type
Tree
Flowering Plants
Origin
North America, Northeastern United States, Mid-Atlantic United States, North-Central United States, Central United States, South-Central United States, Canada
South-Central United States
Types
-
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Number of Varieties
20200
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Rocky areas
USDA Hardiness Zone
3-115-8
0
99
👆🏻
AHS Heat Zone
10-1
12-1
Sunset Zone
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
No Available
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
1,830.00 cm30.00 cm
0
3900
👆🏻
Minimum Width
8.50 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
Tan, Sandy Brown
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Sandy Brown
-
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green, Dark Green
Green
Leaf Color in Fall
Yellow, Green
Green
Leaf Color in Winter
-
-
Shape
Leaf Shape
oblong or obovate
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
-
-
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Early Spring, Spring
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
From bulbs
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves
Fertilizers
Any balanced general purpose fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Blackspot mold
Red blotch
Plant Tolerance
Drought
Drought
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Beetles, Birds
Hummingbirds, Butterflies
Allergy
Miscarriage, Rash
-
Uses
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
Beautiful Skin, Heals Damaged Hair, Strong, beautiful hair
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Demulcent, Diuretic, Expectorant, Nutritive
-
Part of Plant Used
Fruits, Inner Bark, Leaves
Flowers, Leaves
Other Uses
Chewed as a thirst quencher, Tea-like beverage can be brewed, Used as a thickener in soups, Used to make a twine
Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Shade Trees
Bedding Plant, Rock Garden / Wall, Wildflower
Botanical Name
ULMUS rubra
PENSTEMON cobaea
Common Name
Slippery Elm
Beardtongue
In Hindi
Slippery Elm
Beardtongue
In German
Rotulme
Bartfaden
In French
Slippery Elm
beardtongue
In Spanish
olmo resbaladizo
beardtongue
In Greek
Slippery Elm
Beardtongue
In Portuguese
Slippery Elm
Beardtongue
In Polish
Slippery Elm
Beardtongue
In Latin
Lubricus Elm
ursus lingua
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Equisetopsida
Order
Urticales
Lamiales
Family
Ulmaceae
Scrophulariaceae
Genus
Ulmus
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
20261
1
27800
👆🏻