Life Span
Perennial
Perennial
Type
Flowering Plants
Tree
Origin
North-Central United States, Central United States, Western United States, Texas
United States, California
Types
Blue Toadflax, Old-Field Toadflax
-
Number of Varieties
308
0
40000
👆🏻
Habitat
Cultivated Beds
Woodland Garden Canopy
USDA Hardiness Zone
3-96-9
0
99
👆🏻
AHS Heat Zone
9-1
9-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 10
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
61.00 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm1,370.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Light Blue, Lavender
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Light Green, Blue Green, Gray Green
Green, Blue Green
Leaf Color in Summer
Blue Green, Gray Green
Green, Blue Green
Leaf Color in Fall
Blue Green, Gray Green
Yellow, Orange, Pink
Leaf Color in Winter
-
-
Shape
Leaf Shape
Oval to egg shaped
Irregular
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Slow
Type of Soil
Clay, Loam
-
The pH of Soil
Neutral, Alkaline
-
Soil Drainage
Well drained
-
Bloom Time
Late Spring, Early Summer, Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Divison, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Do Not over Water
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
-
Soil Type
Clay, Loam
-
Soil Drainage Capacity
Well drained
-
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, Remove dead or diseased plant parts
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
Insignificant
Flower Petal Number
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
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bumblebees
Birds
Allergy
Depression, High blood cholestrol, Pain
Pollen
Uses
Aesthetic Uses
Showy Purposes
Borders
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Plant Benefits
Medicinal Uses
Analgesic, Febrifuge, Stomachic
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Part of Plant Used
Leaves, Root
Leaves, Seeds, Wood
Other Uses
-
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Rock Garden / Wall, Wildflower
Feature Plant, Shade Trees, Street Trees
Botanical Name
PENSTEMON grandiflorus
QUERCUS douglasii
Common Name
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
Blue Oak
In Hindi
Wild Snapdragon
Blue Oak Tree
In German
Wilde Snapdragon
Blaue Eiche
In French
Snapdragon sauvage
Bleu Oak Tree
In Spanish
Salvaje Snapdragon
Azul del árbol de roble
In Greek
άγρια Snapdragon
Μπλε Oak Tree
In Portuguese
Selvagem Snapdragon
Carvalho azul
In Polish
Dziki Snapdragon
Niebieski Oak Tree
In Latin
Phlox Ferae
Blue quercum ligno
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Fagales
Family
Scrophulariaceae
Fagaceae
Genus
Penstemon
Quercus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Scrophularioideae
-
Number of Species
4020
1
27800
👆🏻