Life Span
Perennial
Perennial
Type
Flowering Plants
Herbs
Origin
North-Central United States, Central United States, Western United States, Texas
Southwestern United States, Central America, South America, Brazil
Types
Blue Toadflax, Old-Field Toadflax
-
Number of Varieties
301
0
40000
👆🏻
Habitat
Cultivated Beds
Mountain Slopes, Mountains, tropical grasslands
USDA Hardiness Zone
3-9-9999
0
99
👆🏻
AHS Heat Zone
9-1
12-7
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 10
H1, H2, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
61.00 cm45.70 cm
0
3900
👆🏻
Minimum Width
25.40 cm40.60 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Light Blue, Lavender
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Light Green, Blue Green, Gray Green
Green, Dark Green
Leaf Color in Summer
Blue Green, Gray Green
Dark Green
Leaf Color in Fall
Blue Green, Gray Green
Dark Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Oval to egg shaped
Even Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Summer, Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Divison, Seedlings
Cuttings, root cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Do Not over Water
Needs very little water, Over-watering can cause leaf problems or root diseases
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
Clay, Loam
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
Cut away fading foliage, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
use all-purpose fertilizers
Does not require fertilizer once established
Pests and Diseases
Foliar disease, Root rot, Spider mites
Bacterial fruit blotch, Damping off, Fusarium wilt, Red blotch, Root rot, Septoria leaf spot, Southern blight
Plant Tolerance
Drought
Drought, Variety of soil types
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
Bees, Butterflies, Flies
Allergy
Depression, High blood cholestrol, Pain
Asthma, Skin irritation, Skin rash
Uses
Aesthetic Uses
Showy Purposes
Cottage Garden, Ornamental use
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Analgesic, Febrifuge, Stomachic
Hypoglycaemic
Part of Plant Used
Leaves, Root
Leaves
Other Uses
-
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Rock Garden / Wall, Wildflower
Bedding Plant, Container, Edible, Herb / Vegetable, Houseplant, Tropical
Botanical Name
PENSTEMON grandiflorus
STEVIA rebaudiana
Common Name
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
Candyleaf, Stevia, Sweetleaf
In Hindi
Wild Snapdragon
Stevia
In German
Wilde Snapdragon
Stevia
In French
Snapdragon sauvage
Stevia
In Spanish
Salvaje Snapdragon
Stevia
In Greek
άγρια Snapdragon
Stevia
In Portuguese
Selvagem Snapdragon
Stevia
In Polish
Dziki Snapdragon
Stewia
In Latin
Phlox Ferae
Stevia
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Asterales
Family
Scrophulariaceae
Asteraceae
Genus
Penstemon
Stevia
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Eupatorieae
Subfamily
Scrophularioideae
-
Number of Species
40240
1
27800
👆🏻