Life Span
Perennial
Perennial
Type
Tree
Succulent
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
California
Types
-
Ulva lactuca, Ulva intestinalis
Number of Varieties
33
0
40000
👆🏻
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
Coastal Regions, shores
USDA Hardiness Zone
4-910-11
0
99
👆🏻
AHS Heat Zone
9-1
12-1
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
9, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Rosette/Stemless
Plant Size
Minimum Height
1,220.00 cm15.20 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Yellow, Red
Flower Color Modifier
Bicolor
-
Fruit Color
Black
-
Leaf Color in Spring
Green, Light Green
Gray Green, Yellow green, Gray
Leaf Color in Summer
Green, Light Green
Gray Green, Yellow green, Gray
Leaf Color in Fall
Yellow, Light Yellow, Tan
Gray Green, Yellow green, Gray
Leaf Color in Winter
-
Gray Green, Yellow green, Gray
Shape
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Cone shaped to oblong
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Drought
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Leaf Cutting, Seedlings, Stem Cutting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Requires a lot of watering, Requires regular watering
Water slowly, and allow to dry completely between soakings
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full 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
Fertilzer with low nitrogen content
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Fungal Diseases, Root rot
Plant Tolerance
Pollution, Soil Compaction, Wet Site
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
Asthma
Mild Allergen
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control, Wildlife
Air purification
Plant Benefits
Medicinal Uses
-
Bone strength, Rich in Iron, Rich in protein
Part of Plant Used
Whole plant
Leaves
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Used in salads, Used to flavour soups
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Container, Houseplant, Mixed Border, Rock Garden, Wall
Botanical Name
BETULA nigra
DUDLEYA caespitosa
Common Name
River Birch
Sealettuce, Sand lettuce, Coast dudleya
In Hindi
River Birch
Sea Lettuce
In German
Fluss Birch
Meersalat
In French
Birch river
La laitue de mer
In Spanish
river Birch
lechuga de mar
In Greek
ποταμός Birch
θάλασσα Μαρούλι
In Portuguese
river Birch
alface mar
In Polish
Rzeka Birch
Sea sałata
In Latin
Betula
Lactuca mare
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Rosales
Family
Betulaceae
Crassulaceae
Genus
Betula
Dudleya
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Core eudicots, Eudicots
Tribe
-
Sedeae
Subfamily
-
Sedoideae
Number of Species
350
1
27800
👆🏻