Life Span
Annual
Perennial
Type
Bulb or Corm or Tuber
Flowering Plants
Origin
Eastern Europe, Southern Europe, Mediterranean, Turkey, Western Asia
South-Central United States
Types
Mountain silverbell , Rosea
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Number of Varieties
3200
0
40000
👆🏻
Habitat
Floodplains, low mountains, Lower slopes, secondary forest
Rocky areas
USDA Hardiness Zone
5-95-8
0
99
👆🏻
AHS Heat Zone
9-5
12-1
Sunset Zone
21,22
No Available
Habit
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
25.40 cm30.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
White
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Light Green
Green
Leaf Color in Fall
Several shades of Green
Green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Acuminate
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring
-
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
-
Loam
The pH of Soil
-
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Spring, Late Spring
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Ground
How to Plant?
Layering, Seedlings, Stem Cutting
From bulbs
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
occasional watering once established
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
Soil Type
-
Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Prune grass to maintain level, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Pests and diseases free
Red blotch
Plant Tolerance
Drought and Salt
Drought
Flowers
Showy
Showy
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
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
-
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Flying insects
Hummingbirds, Butterflies
Allergy
-
-
Uses
Aesthetic Uses
along a porch, deck or patio, Beautification, Cottage Garden, Showy Purposes, Wild gardens
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
-
Flowers, Leaves
Other Uses
Decoration Purposes
Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cutflower, Mixed Border, Rock Garden / Wall
Bedding Plant, Rock Garden / Wall, Wildflower
Botanical Name
ORNITHOGALUM nutans
PENSTEMON cobaea
Common Name
Drooping Star-of-Bethlehem, Nodding Star-of-Bethlehem, Silver Bells
Beardtongue
In Hindi
Silver bells
Beardtongue
In German
Silver bells
Bartfaden
In French
Silver bells
beardtongue
In Spanish
Silver bells
beardtongue
In Greek
Silver bells
Beardtongue
In Portuguese
Silver bells
Beardtongue
In Polish
Silver bells
Beardtongue
In Latin
Silver bells
ursus lingua
Kingdom
Plantae
Plantae
Phylum
Angiosperms
Tracheophyta
Class
Magnoliopsida
Equisetopsida
Order
Ebenales
Lamiales
Family
Asparagaceae
Scrophulariaceae
Genus
Halesia
Penstemon
Clade
Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
4261
1
27800
👆🏻