Life Span
Perennial
Perennial
Type
Flowering Plants
Cactus or Succulent, Tree
Origin
South-Central United States
Southwestern United States, Mexico
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
-
Number of Varieties
20040
0
40000
👆🏻
Habitat
Rocky areas
Desert, Dry areas, Rocky areas, Sandy areas
USDA Hardiness Zone
5-86-10
0
99
👆🏻
AHS Heat Zone
12-1
12-7
Sunset Zone
No Available
9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
30.00 cm610.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm300.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
White, Ivory
Flower Color Modifier
Bicolor
-
Fruit Color
-
Light Green
Leaf Color in Spring
Green
Gray Green, Dark Green
Leaf Color in Summer
Green
Gray Green, Dark Green
Leaf Color in Fall
Green
Gray Green, Dark Green
Leaf Color in Winter
-
Olive, Gray Green, Dark Green
Shape
Leaf Shape
Long linear and narrow
Linear
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Medium
Very Slow
Type of Soil
Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Early Spring, Spring, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Leaf Cutting, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Allow soil to be completely dry in between waterings, Do not water frequently
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
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Remove damaged leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, No fertilizers needed
Pests and Diseases
Red blotch
Brown Spots, Red blotch
Plant Tolerance
Drought
Drought, Dry Conditions, Dry soil, Heat Tolerance, Rocky Soil, Sun
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
Bold
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
-
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Decorating walls
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Flowers, Leaves
-
Other Uses
Showy Purposes, Used as Ornamental plant
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Feature Plant, Rock Garden, Wall
Botanical Name
PENSTEMON cobaea
YUCCA brevifolia
Common Name
Beardtongue
yucca palm
tree yucca
palm tree yucca
In Hindi
Beardtongue
Joshua Tree
In German
Bartfaden
Joshua Tree
In French
beardtongue
Joshua Tree
In Spanish
beardtongue
Árbol de Joshua
In Greek
Beardtongue
Joshua Tree
In Portuguese
Beardtongue
Joshua Tree
In Polish
Beardtongue
Joshua Tree
In Latin
ursus lingua
Joshua ligno
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Tracheophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Asparagales
Family
Scrophulariaceae
Agavaceae
Genus
Penstemon
Yucca
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
26150
1
27800
👆🏻