Life Span
Perennial
Perennial
Type
Flowering Plants
Flowering Plants, Shrub
Origin
South-Central United States
Southwest Asia
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Calypso, Petite Salmon, Petite Pink
Number of Varieties
2001
0
40000
👆🏻
Habitat
Rocky areas
dry rocky watercourses, Riverbanks
USDA Hardiness Zone
5-89-11
0
99
👆🏻
AHS Heat Zone
12-1
-
Sunset Zone
No Available
8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Habit
Clump-Forming
Bushy, Evergreen
Plant Size
Minimum Height
30.00 cm300.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm350.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Cream, Creamy Yellow, Pink, Purple, Red, White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green
Dark Green
Leaf Color in Summer
Green
Dark Green
Leaf Color in Fall
Green
Dark Green
Leaf Color in Winter
-
Gray Green
Shape
Leaf Shape
Long linear and narrow
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
-
Fall, Spring
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Loam
Well drained
The pH of Soil
Neutral, Alkaline
Neutral, Slightly Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground, Pot
How to Plant?
From bulbs
Layering, Seedlings, Stem Planting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Requires watering in the growing season
Water less during winter, Water more in summer
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Neutral, Slightly Alkaline
Soil Type
Loam
Well drained
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial shade
Pruning
Remove damaged leaves
Prune in the late winter or spring, Remove shoots
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, fertilize every 2-3 weeks while growing, Fertilize in early spring, Potassium
Pests and Diseases
Red blotch
Leaf spot, Mealybugs, Red blotch, Red spider mite, Scale, Scale insects
Plant Tolerance
Drought
Drought
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Mealybugs
Allergy
-
Phytodermatitis, Rash, Toxic
Uses
Aesthetic Uses
Showy Purposes
Cottage Garden, Showy Purposes, Used in parkland
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Asthma, Cancer, Cardiotonic, Diabetes, epilepsy, Scabies
Part of Plant Used
Flowers, Leaves
Flowers, Leaves
Other Uses
Showy Purposes, Used as Ornamental plant
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
-
Botanical Name
PENSTEMON cobaea
Nerium
Common Name
Beardtongue
Oleander, Nerium Oleander
In Hindi
Beardtongue
ओलियंडर
In German
Bartfaden
Oleander
In French
beardtongue
laurier-rose
In Spanish
beardtongue
Adelfa
In Greek
Beardtongue
Πικροδάφνη
In Portuguese
Beardtongue
oleandro
In Polish
Beardtongue
Oleander
In Latin
ursus lingua
Cleander
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Gentianales
Family
Scrophulariaceae
Apocynaceae
Genus
Penstemon
Nerium
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Wrightieae
Subfamily
-
Apocynoideae, Hippocastanoideae
Number of Species
261700
1
27800
👆🏻