Life Span
Perennial
Perennial
Type
Tree
Bulb, Flowering Plants
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Aegean Islands, Central Asia, Middle East, North Africa, Southern Europe, Western China
Types
-
Crocus abantensis, Crocus adanensis, Crocus biflorus, Crocus chrysanthus, Crocus korolkowii
Number of Varieties
390
0
40000
👆🏻
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
Scrubs, Woods
USDA Hardiness Zone
4-93-8
0
99
👆🏻
AHS Heat Zone
9-1
8-1
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
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
Clump-Forming
Plant Size
Minimum Height
1,220.00 cm10.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm5.10 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Blue, Orange, Pink, Purple, White, Yellow
Flower Color Modifier
Bicolor
-
Fruit Color
Black
-
Leaf Color in Spring
Green, Light Green
Green
Leaf Color in Summer
Green, Light Green
-
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Part sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Loamy
The pH of Soil
Acidic, Neutral
Neutral, Slightly Acidic
Soil Drainage
Average
Well drained
Bloom Time
Spring
Spring, Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
From bulbs, Grafting, Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Requires a lot of watering, Requires regular watering
Form a Soil ring to water efficiently, Water Deeply, Water twice a day in the initial period, Water when soil is dry
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Neutral, Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Part sun
Pruning
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
No pruning needed in the early stages, Prune to stimulate growth, Remove dead or diseased plant parts, Requires little pruning
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
All-Purpose Liquid Fertilizer
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Aphids, Botrytis Blight, Mushroom root rot, Narcissus Basal Rot, Narcissus Bulb Fly, Slugs, Snails, Tulip Fire, Tulip Viruses
Plant Tolerance
Pollution, Soil Compaction, Wet Site
Drought
Flowers
✔
✘
✔
✘
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
-
Allergy
Asthma
-
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control, Wildlife
Air purification
Plant Benefits
Medicinal Uses
-
Arthritis, Gout
Part of Plant Used
Whole plant
Whole plant
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
-
Botanical Name
BETULA nigra
Crocus Longiflorus
Common Name
River Birch
Crocus
In Hindi
River Birch
Crocus
In German
Fluss Birch
Krokus
In French
Birch river
Crocus
In Spanish
river Birch
Azafrán
In Greek
ποταμός Birch
κρόκος
In Portuguese
river Birch
Açafrão
In Polish
Rzeka Birch
Krokus
In Latin
Betula
Erocum
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Asparagales
Family
Betulaceae
Iridaceae
Genus
Betula
Crocus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
Crocoideae
Number of Species
390
1
27800
👆🏻