Life Span
Perennial
Perennial
Type
Flowering Plants
Fruit
Origin
South-Central United States
Southern Asia, India, Melanesia, Australia
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
etrog
Number of Varieties
2005
0
40000
👆🏻
Habitat
Rocky areas
Mediterranean region, Subtropical climates, Tropical regions
USDA Hardiness Zone
5-89-11
0
99
👆🏻
AHS Heat Zone
12-1
12-9
Sunset Zone
No Available
H1, H2, 8, 9, 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 cm240.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm180.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Yellow
Leaf Color in Spring
Green
Green, Dark Green
Leaf Color in Summer
Green
Green, Dark Green
Leaf Color in Fall
Green
Green, Dark Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Long linear and narrow
Ovate elongated
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
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Early Spring, Spring, Winter, Late Winter, Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Seedlings, Transplanting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Needs less watering
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
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
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
Aphids, Citrus foot rot, Leafminers, Red blotch
Plant Tolerance
Drought
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
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Birds, Butterflies
Allergy
-
Mild Allergen
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
Brightens the skin complexion, Good for skin and hair
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Antibiotic, Antidote, Pulmonary afflictions, Recovering internal injuries
Part of Plant Used
Flowers, Leaves
Fruits, Leaves
Other Uses
Showy Purposes, Used as Ornamental plant
Used as a nutritious food item, Used As Food, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Container, Edible, Feature Plant, Fruit / Fruit Tree, Hedges, Houseplant, Shade Trees, Topiary / Bonsai / Espalier, Tropical
Botanical Name
PENSTEMON cobaea
CITRUS medica
Common Name
Beardtongue
Citron
In Hindi
Beardtongue
नीबू
In German
Bartfaden
Zitrone
In French
beardtongue
Citron
In Spanish
beardtongue
Cidra
In Greek
Beardtongue
Κίτρο
In Portuguese
Beardtongue
cidra
In Polish
Beardtongue
Cytryna
In Latin
ursus lingua
Chron
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Sapindales
Family
Scrophulariaceae
Rutaceae
Genus
Penstemon
Citrus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
Citreae
Subfamily
-
Aurantioideae
Number of Species
2617
1
27800
👆🏻