Life Span
Perennial
Perennial
Type
Tree
Herbs
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
-
Types
-
Thymus citriodorus
Number of Varieties
315
0
40000
👆🏻
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
gardens
USDA Hardiness Zone
4-9-9999
0
99
👆🏻
AHS Heat Zone
9-1
9-6
Sunset Zone
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
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
Oval or Rounded
Cushion/Mound-forming
Plant Size
Minimum Height
1,220.00 cm25.40 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Pink, Lavender
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Black
-
Leaf Color in Spring
Green, Light Green
Green
Leaf Color in Summer
Green, Light Green
Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Ovate-lanceolate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Deer resistant, Drought, Frost
Where to Plant?
Ground
Container, Pot
How to Plant?
Seedlings
Seedlings, Softwood cuttings
Plant Maintenance
Low
Low
Watering Plants
Watering Requirements
Requires a lot of watering, Requires regular watering
Needs less watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Remove damaged leaves, Remove dead branches, Remove dead flowers, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
All-Purpose Liquid Fertilizer
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Root rot
Plant Tolerance
Pollution, Soil Compaction, Wet Site
Deer resistant, Drought, Frost
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
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Bees, Wildlife
Allergy
Asthma
Avoid during Pregnancy, Nausea
Uses
Aesthetic Uses
Showy Purposes
Beautification, Cottage Garden, Showy Purposes
Beauty Benefits
-
Anti-ageing, Good for skin
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control, Wildlife
Air purification
Plant Benefits
Medicinal Uses
-
Bronchitis, Combats Stress, Indigestion, Upset stomach
Part of Plant Used
Whole plant
Leaves
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Oil is used for aromatherapy, Used in herbal medicines, Used in salads, Used to make herbal teas
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Container, Edging, Edible, Herb / Vegetable, Mixed Border, Rock Garden / Wall
Botanical Name
BETULA nigra
Thymus citriodorus
Common Name
River Birch
Lemon Thyme, Citrus thyme
In Hindi
River Birch
Lemon Thyme
In German
Fluss Birch
Zitronenthymian
In French
Birch river
citron Thyme
In Spanish
river Birch
citron Thyme
In Greek
ποταμός Birch
λεμόνι Θυμάρι
In Portuguese
river Birch
limão Tomilho
In Polish
Rzeka Birch
tymianek cytrynowy
In Latin
Betula
lemon Thyme
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Betulaceae
Lamiaceae
Genus
Betula
Thymus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
Nepetoideae
Number of Species
3350
1
27800
👆🏻