Life Span
Annual and Perennial
Perennial
Type
Tender Perennial
Tree
Origin
Eastern Africa
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Types
-
-
Number of Varieties
153
0
40000
👆🏻
Habitat
Rocky Ridges, Shores of rivers or lakes, Tropical Climate, tropical environments
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
USDA Hardiness Zone
11-124-9
0
99
👆🏻
AHS Heat Zone
7-1
9-1
Sunset Zone
H1, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Oval or Rounded
Plant Size
Minimum Height
25.40 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Purple, Violet
Yellow, Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Black
Leaf Color in Spring
Dark Green
Green, Light Green
Leaf Color in Summer
Dark Green
Green, Light Green
Leaf Color in Fall
Dark Green
Yellow, Light Yellow, Tan
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Ovate
Oval with a pointed tip and fine teeth along their edges
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Fast
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Neutral
Acidic, Neutral
Soil Drainage
Average
Average
Bloom Time
Indeterminate
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Wet Site, Pollution, Soil Compaction
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings, stem tip cuttings
Seedlings
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Keep ground moist, Keep the Soil well drained, Medium, Requires regular watering
Requires a lot of watering, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral
Acidic, Neutral
Soil Type
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Pinch Tips, Prune prior to new growth, Prune to stimulate growth
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, No need to fertilize every year
Pests and Diseases
Grey mold, Leaf spot, Mites, Root rot
Aphids, Red blotch, Sawfly Larvae
Plant Tolerance
Drought
Pollution, Soil Compaction, Wet Site
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
Fine
Medium
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Flying insects, Hummingbirds
-
Allergy
Pollen
Asthma
Uses
Aesthetic Uses
Bouquets, Cut Flowers, Decorating walls, Hanging Basket, Showy Purposes, Used for decorating walls, fences, gates, hedges, etc.
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Erosion control, Wildlife
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Flowers, Leaves
Whole plant
Other Uses
Used as Ornamental plant, Used for bedding in gardens
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Edging, Houseplant, Tropical
Feature Plant, Shade Trees
Botanical Name
EXACUM affine
BETULA nigra
Common Name
German Violet, Persian Violet
River Birch
In Hindi
persian violet
River Birch
In German
persian violet
Fluss Birch
In French
persian violet
Birch river
In Spanish
Violeta persa
river Birch
In Greek
Περσικό Violet
ποταμός Birch
In Portuguese
Violeta persa
river Birch
In Polish
Persian Violet
Rzeka Birch
In Latin
hyacinthum Persarum
Betula
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Gentianales
Fagales
Family
Gentianaceae
Betulaceae
Genus
Exacum
Betula
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Exaceae
-
Subfamily
-
-
Number of Species
253
1
27800
👆🏻