Life Span
Perennial
Perennial
Type
Flowering Plants
Tree
Origin
North-Central United States, Central United States, Western United States, Texas
Southeastern United States, Mexico, Caribbean, Central America
Types
Blue Toadflax, Old-Field Toadflax
Guaiacum officinale
Number of Varieties
303
0
40000
👆🏻
Habitat
Cultivated Beds
Coastal Regions, Dry and Young forest Heaths, Thickets, Woodlands
USDA Hardiness Zone
3-910-15
0
99
👆🏻
AHS Heat Zone
9-1
12-10
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 10
H1, H2
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
61.00 cm300.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm370.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Light Blue, Lavender
Purple, Violet, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Yellow, Red
Leaf Color in Spring
Light Green, Blue Green, Gray Green
Green, Olive
Leaf Color in Summer
Blue Green, Gray Green
Green, Dark Green
Leaf Color in Fall
Blue Green, Gray Green
Green, Olive
Leaf Color in Winter
-
Olive
Shape
Leaf Shape
Oval to egg shaped
Egg-shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Very Slow
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Early Spring, Spring, Late Winter, Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Salt
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
Requires watering in the growing season
In Summer
Lots of watering
Consistently
In Spring
Moderate
Average Water
In Winter
Average Water
Moderate
Soil
Soil pH
Neutral, Alkaline
Neutral, Alkaline
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune to stimulate growth
Fertilizers
use all-purpose fertilizers
Fertilize three times a year
Pests and Diseases
Foliar disease, Root rot, Spider mites
fungus, Mealybugs, Scale, Spider mites
Plant Tolerance
Drought
Drought, Salt
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
Fine
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bumblebees
Birds, Butterflies
Allergy
Depression, High blood cholestrol, Pain
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
-
Part of Plant Used
Leaves, Root
Bark, Sap
Other Uses
-
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Rock Garden / Wall, Wildflower
Container, Feature Plant, Foundation, Mixed Border, Rock Garden / Wall, Tropical
Botanical Name
PENSTEMON grandiflorus
GUAIACUM sanctum
Common Name
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
Holy-wood, Lignum Vitae
In Hindi
Wild Snapdragon
Lignum Vitae
In German
Wilde Snapdragon
Lignum Vitae
In French
Snapdragon sauvage
Lignum Vitae
In Spanish
Salvaje Snapdragon
Palo santo
In Greek
άγρια Snapdragon
Lignum Vitae
In Portuguese
Selvagem Snapdragon
pau-santo
In Polish
Dziki Snapdragon
Lignum Vitae
In Latin
Phlox Ferae
lignum Vitae
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Sapindales
Family
Scrophulariaceae
Zygophyllaceae
Genus
Penstemon
Guaiacum
Clade
Angiosperms, Asterids, Eudicots
-
Tribe
-
-
Subfamily
Scrophularioideae
-
Number of Species
403
1
27800
👆🏻