Life Span
Perennial
Perennial
Type
Flowering Plants
Shrub
Origin
South-Central United States
China, Japan
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
-
Number of Varieties
2005
0
40000
👆🏻
Habitat
Rocky areas
subtropical regions, Temperate Regions
USDA Hardiness Zone
5-86-9
0
99
👆🏻
AHS Heat Zone
12-1
9-7
Sunset Zone
No Available
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
30.00 cm300.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm300.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
White, Silver
Flower Color Modifier
Bicolor
-
Fruit Color
-
Reddish Plum
Leaf Color in Spring
Green
White, Dark Green, Sienna
Leaf Color in Summer
Green
White, Dark Green, Sienna
Leaf Color in Fall
Green
White, Dark Green, Sienna
Leaf Color in Winter
-
White, Dark Green, Sienna
Shape
Leaf Shape
Long linear and narrow
broad, flat
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Fast
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Fall, Late Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Pollution, Salt
Where to Plant?
Ground
Ground, Pot
How to Plant?
From bulbs
Cuttings, root cutting, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Coral Spot, Leaf spot, Red blotch
Plant Tolerance
Drought
Drought
Flowers
Showy
Insignificant
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Birds
Allergy
-
Toxic
Uses
Aesthetic Uses
Showy Purposes
Bonsai, Cottage Garden, Ground Cover
Beauty Benefits
-
Skin irritation
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Fixes Nitrogen
Plant Benefits
Medicinal Uses
-
Antiasthamatic, Antitussive, Astringent
Part of Plant Used
Flowers, Leaves
Fruits, Leaves, Root, Stem
Other Uses
Showy Purposes, Used as Ornamental plant
Used as Ornamental plant, Used for making hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Feature Plant, Hedges, Screening, Wind Break
Botanical Name
PENSTEMON cobaea
Elaeagnus pungens
Common Name
Beardtongue
Silverthorn
In Hindi
Beardtongue
Silverthorn
In German
Bartfaden
Silverthorn
In French
beardtongue
Silverthorn
In Spanish
beardtongue
Silverthorn
In Greek
Beardtongue
Silverthorn
In Portuguese
Beardtongue
Silverthorn
In Polish
Beardtongue
Silverthorn
In Latin
ursus lingua
Silverthorn
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Rhamnales
Family
Scrophulariaceae
Elaeagnaceae
Genus
Penstemon
Elaeagnus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
26170
1
27800
👆🏻