Life Span
Annual and Perennial
Perennial
Type
Tender Perennial
Tree
Origin
Eastern Africa
North America, United States, Northwestern United States, Alaska, California, Canada
Types
-
-
Number of Varieties
1530
0
40000
👆🏻
Habitat
Rocky Ridges, Shores of rivers or lakes, Tropical Climate, tropical environments
Lowland evergreen rainforest
USDA Hardiness Zone
11-124-7
0
99
👆🏻
AHS Heat Zone
7-1
7-1
Sunset Zone
H1, 23, 24
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Cushion/Mound-forming
Pyramidal
Plant Size
Minimum Height
25.40 cm1,370.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Purple, Violet
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown
Leaf Color in Spring
Dark Green
Green, Dark Green
Leaf Color in Summer
Dark Green
Dark Green
Leaf Color in Fall
Dark Green
Dark Green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Ovate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Fast
Type of Soil
Loam
Loam, Sand
The pH of Soil
Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Average
Average
Bloom Time
Indeterminate
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Maritime exposure, Salt water
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings, stem tip cuttings
Layering, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Keep ground moist, Keep the Soil well drained, Medium, Requires regular watering
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
Acidic, Neutral, Alkaline
Soil Type
Loam
Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Pinch Tips, Prune prior to new growth, Prune to stimulate growth
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, Nitrogen
Pests and Diseases
Grey mold, Leaf spot, Mites, Root rot
-
Plant Tolerance
Drought
Maritime exposure, Salt water
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
Fine
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Flying insects, Hummingbirds
Insects
Allergy
Pollen
-
Uses
Aesthetic Uses
Bouquets, Cut Flowers, Decorating walls, Hanging Basket, Showy Purposes, Used for decorating walls, fences, gates, hedges, etc.
-
Beauty Benefits
-
Skin Problems
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Prevent Soil Erosion, Shadow Tree
Plant Benefits
Medicinal Uses
-
Anodyne, Appetizer, Astringent
Part of Plant Used
Flowers, Leaves
Flowers, Inner Bark, Sap
Other Uses
Used as Ornamental plant, Used for bedding in gardens
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Edging, Houseplant, Tropical
Screening / Wind Break, Shade Trees
Botanical Name
EXACUM affine
ALNUS rubra
Common Name
German Violet, Persian Violet
Oregon Alder, Red Alder
In Hindi
persian violet
red alder
In German
persian violet
rot-Erle
In French
persian violet
aulne rouge
In Spanish
Violeta persa
aliso rojo
In Greek
Περσικό Violet
κόκκινη σκλήθρα
In Portuguese
Violeta persa
amieiro vermelho
In Polish
Persian Violet
czerwony olcha
In Latin
hyacinthum Persarum
red alnus
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Gentianales
Fagales
Family
Gentianaceae
Betulaceae
Genus
Exacum
Alnus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Exaceae
-
Subfamily
-
-
Number of Species
2535
1
27800
👆🏻