Life Span
Perennial
Annual and Perennial
Type
Flowering Plants
Tender Perennial
Origin
South-Central United States
Mexico, Central America
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
A. houstonianum f. isochroum, A. houstonianum f. luteum, A. houstonianum var. muticescens
Number of Varieties
2006
0
40000
👆🏻
Habitat
Rocky areas
Sunny Edge, Woodland Garden
USDA Hardiness Zone
5-810-13
0
99
👆🏻
AHS Heat Zone
12-1
12-1
Sunset Zone
No Available
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24
Habit
Clump-Forming
Cushion/Mound-forming
Plant Size
Minimum Height
30.00 cm30.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
White, Blue, Blue Violet
Flower Color Modifier
Bicolor
-
Fruit Color
-
Brown
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Green
Leaf Color in Fall
Green
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Long linear and narrow
Heart-shaped
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
From bulbs
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Keep ground moist, Keep the Soil well drained
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
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
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
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
-
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Birds, Butterflies
Allergy
-
allergic reaction, Poisonous, Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Anodyne, Cuts, Wounds
Part of Plant Used
Flowers, Leaves
Flowers
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
Bedding Plant, Container, Cutflower, Edging, Hanging Basket, Mixed Border, Tropical
Botanical Name
PENSTEMON cobaea
AGERATUM houstonianum
Common Name
Beardtongue
Ageratum, Blue Mink, Flossflower
In Hindi
Beardtongue
Blue Mink
Plant
In German
Bartfaden
Blue Mink
Pflanze
In French
beardtongue
Bleu Mink
Plante
In Spanish
beardtongue
azul Mink
Planta
In Greek
Beardtongue
μπλε βιζόν
Φυτό
In Portuguese
Beardtongue
azul Mink
Plantar
In Polish
Beardtongue
niebieski Mink
Roślina
In Latin
ursus lingua
blue Mink
planta
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Asterales
Family
Scrophulariaceae
Asteraceae
Genus
Penstemon
Ageratum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Eupatorieae
Subfamily
-
Asteroideae
Number of Species
2611
1
27800
👆🏻