Life Span
Perennial
Perennial
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Europe, Mediterranean, Northern Africa, Asia
Types
-
Thymus praecox subsp. arcticus, Thymus pseudolanuginosus
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
Cultivated Beds
USDA Hardiness Zone
4-9
-9999
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
A2, A3, 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
Mat-forming
Flower Color
Yellow, Brown
Light Pink, Lavender
Flower Color Modifier
Bicolor
Bicolor
Leaf Color in Spring
Green, Light Green
Sea Green, Gray Green
Leaf Color in Summer
Green, Light Green
Sea Green, Gray Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Sea Green, Gray Green
Leaf Color in Winter
-
Light Green
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Ovate
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring, Early Summer, Summer
Tolerances
Wet Site, Pollution, Soil Compaction
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Divison, Seedlings
Plant Maintenance
Low
Medium
Watering Requirements
Requires a lot of watering, Requires regular watering
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral
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 leaves
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
Fertilize every year
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Gray mold, Root rot
Plant Tolerance
Pollution, Soil Compaction, Wet Site
Drought
Flower Petal Number
-
Single
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Allergy
Asthma
Skin irritation
Aesthetic Uses
Showy Purposes
Borders, Cottage Garden
Environmental Uses
Erosion control, Wildlife
Air purification
Medicinal Uses
-
Antiseptic, Disinfectant
Part of Plant Used
Whole plant
Leaves
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Used as a flavouring in food, Used as essential oil
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Alpine, Container, Edging, Edible, Herb / Vegetable, Mixed Border, Rock Garden / Wall
Botanical Name
BETULA nigra
THYMUS pseudolanuginosus
Common Name
River Birch
Wooly Thyme
In Hindi
River Birch
Wooly Thyme
In German
Fluss Birch
Wooly Thymian
In French
Birch river
Wooly Thyme
In Spanish
river Birch
Lanoso Tomillo
In Greek
ποταμός Birch
Wooly Θυμάρι
In Portuguese
river Birch
Wooly tomilho
In Polish
Rzeka Birch
Wooly Tymianek
In Latin
Betula
Wooly Thyme
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Betulaceae
Lamiaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Season and Care of River Birch and Wooly Thyme
Season and care of River Birch and Wooly Thyme is important to know. While considering everything about River Birch and Wooly Thyme Care, growing season is an essential factor. River Birch season is Spring, Summer, Fall and Winter and Wooly Thyme season is Spring, Summer, Fall and Winter. The type of soil for River Birch is Clay, Loam, Sand and for Wooly Thyme is Loam, Sand while the PH of soil for River Birch is Acidic, Neutral and for Wooly Thyme is Acidic, Neutral.
River Birch and Wooly Thyme Physical Information
River Birch and Wooly Thyme physical information is very important for comparison. River Birch height is 1,220.00 cm and width 1,220.00 cm whereas Wooly Thyme height is 250.00 cm and width 45.70 cm. The color specification of River Birch and Wooly Thyme are as follows:
River Birch flower color: Yellow and Brown
River Birch leaf color: Green and Light Green
Wooly Thyme flower color: Light Pink and Lavender
- Wooly Thyme leaf color: Sea Green and Gray Green
Care of River Birch and Wooly Thyme
Care of River Birch and Wooly Thyme include pruning, fertilizers, watering etc. River Birch pruning is done Prune in the late winter or spring, Remove dead or diseased plant parts and Shape and thin as needed and Wooly Thyme pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer River Birch needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Wooly Thyme needs Lots of watering and in winter, it needs Average Water.