Life Span
Perennial
Annual and Perennial
Type
Flowering Plants
Tender Perennial
Origin
North-Central United States, Central United States, Western United States, Texas
Mexico, Central America
Types
Blue Toadflax, Old-Field Toadflax
A. houstonianum f. isochroum, A. houstonianum f. luteum, A. houstonianum var. muticescens
Number of Varieties
306
0
40000
👆🏻
Habitat
Cultivated Beds
Sunny Edge, Woodland Garden
USDA Hardiness Zone
3-910-13
0
99
👆🏻
AHS Heat Zone
9-1
12-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 10
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24
Habit
Upright/Erect
Cushion/Mound-forming
Plant Size
Minimum Height
61.00 cm30.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Light Blue, Lavender
White, Blue, Blue Violet
Flower Color Modifier
Bicolor
-
Fruit Color
-
Brown
Leaf Color in Spring
Light Green, Blue Green, Gray Green
Green
Leaf Color in Summer
Blue Green, Gray Green
Green
Leaf Color in Fall
Blue Green, Gray Green
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Oval to egg shaped
Heart-shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Cuttings, Divison, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Do Not over Water
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
Clay, 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 dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
use all-purpose fertilizers
All-Purpose Liquid Fertilizer
Pests and Diseases
Foliar disease, Root rot, Spider mites
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
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bumblebees
Birds, Butterflies
Allergy
Depression, High blood cholestrol, Pain
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
Analgesic, Febrifuge, Stomachic
Anodyne, Cuts, Wounds
Part of Plant Used
Leaves, Root
Flowers
Other Uses
-
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Rock Garden / Wall, Wildflower
Bedding Plant, Container, Cutflower, Edging, Hanging Basket, Mixed Border, Tropical
Botanical Name
PENSTEMON grandiflorus
AGERATUM houstonianum
Common Name
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
Ageratum, Blue Mink, Flossflower
In Hindi
Wild Snapdragon
Blue Mink
Plant
In German
Wilde Snapdragon
Blue Mink
Pflanze
In French
Snapdragon sauvage
Bleu Mink
Plante
In Spanish
Salvaje Snapdragon
azul Mink
Planta
In Greek
άγρια Snapdragon
μπλε βιζόν
Φυτό
In Portuguese
Selvagem Snapdragon
azul Mink
Plantar
In Polish
Dziki Snapdragon
niebieski Mink
Roślina
In Latin
Phlox Ferae
blue Mink
planta
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Asterales
Family
Scrophulariaceae
Asteraceae
Genus
Penstemon
Ageratum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Eupatorieae
Subfamily
Scrophularioideae
Asteroideae
Number of Species
401
1
27800
👆🏻