Life Span
Perennial
Perennial
Type
Flowering Plants
Tree
Origin
South-Central United States
Caribbean, Central America, South America
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Alaskan blueberry, Lowbush blueberry, New Jersey blueberry
Number of Varieties
20020
0
40000
👆🏻
Habitat
Rocky areas
Dappled Shade, Sunny Edge, Woodland Garden Canopy
USDA Hardiness Zone
5-810-15
0
99
👆🏻
AHS Heat Zone
12-1
12-9
Sunset Zone
No Available
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
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
30.00 cm243.84 cm
0
3900
👆🏻
Minimum Width
30.50 cm60.96 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Dark Blue, Black
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Green, Dark Green
Leaf Color in Fall
Green
Dark Green
Leaf Color in Winter
-
Dark Green
Shape
Leaf Shape
Long linear and narrow
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Late Spring, Early Summer, Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Seedlings, Stem Cutting
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
Soil Type
Loam
Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves
Prune in early spring, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, Ammonia sulphate, In Late summer, Nitrogen, Phosphorous, Potassium, Potassium sulphate
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Birds
Allergy
-
Pollen
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
Good for skin and hair, Speed hair growth, Weightloss
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Astringent, Pectoral
Part of Plant Used
Flowers, Leaves
Fruits
Other Uses
Showy Purposes, Used as Ornamental plant
Used in making tea
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Shade Trees, Tropical
Botanical Name
PENSTEMON cobaea
SYMPLOCOS martinicensis
Common Name
Beardtongue
Blue Berry, Horse Sugar, Martinique Sweetleaf, Whitewood
In Hindi
Beardtongue
Blue Berry Tree
In German
Bartfaden
Blue Berry Baum
In French
beardtongue
Bleu Berry Tree
In Spanish
beardtongue
Árbol de la baya azul
In Greek
Beardtongue
Μπλε δέντρο μούρων
In Portuguese
Beardtongue
Árvore Berry Azul
In Polish
Beardtongue
Niebieski Berry Drzewo
In Latin
ursus lingua
Berry lignum blue
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Ebenales
Family
Scrophulariaceae
Symplocaceae
Genus
Penstemon
Symplocos
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
261300
1
27800
👆🏻