Life Span
Perennial
Perennial
Type
Flowering Plants
Perennial
Origin
South-Central United States
Eastern Asia, India, Nepal, China
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Victoria Rhubarb
Colorado Red Rhubarb
Turkish Rhubarb
Number of Varieties
200100
0
40000
👆🏻
Habitat
Rocky areas
gardens, Grassland, Humid climates, Tropical regions, Urban areas
USDA Hardiness Zone
5-83-7
0
99
👆🏻
AHS Heat Zone
12-1
8-5
Sunset Zone
No Available
2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
30.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Ivory
Flower Color Modifier
Bicolor
-
Fruit Color
-
-
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Green
Leaf Color in Fall
Green
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Long linear and narrow
Compound
Thorns
✔
✘
✔
✘
Plant Season
-
Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam
Clay, Loam
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Summer, Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Do Not over Water, Requires regular watering, Use Mulches to help prevent water loss during hot and windy weather, Water Deeply
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
Loam
Clay, Loam
Soil Drainage Capacity
Well drained
Well drained
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
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Bold
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
-
Allergy
-
Skin irritation
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Flowers, Leaves
Whole plant
Other Uses
Showy Purposes, Used as Ornamental plant
Culinary use, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Edible, Herb / Vegetable, Mixed Border
Botanical Name
PENSTEMON cobaea
RHEUM x hybridum
Common Name
Beardtongue
Hybrid Garden Rhubarb, Rhubarb
In Hindi
Beardtongue
एक प्रकार का फल
In German
Bartfaden
Rhabarber
In French
beardtongue
Rhubarbe
In Spanish
beardtongue
Ruibarbo
In Greek
Beardtongue
Ραβέντι
In Portuguese
Beardtongue
Ruibarbo
In Polish
Beardtongue
Rabarbar
In Latin
ursus lingua
RHEUM
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Tracheophyta
Class
Equisetopsida
-
Order
Lamiales
Caryophyllales
Family
Scrophulariaceae
Polygonaceae
Genus
Penstemon
Rheum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Core eudicots, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
26160
1
27800
👆🏻