Plant Profile: Leymus racemosus

Taxonomy: Leymus racemosus

Names

Giant Blue Wild Rye, Mammoth Wild Rye, Volga Wild Rye

  • Photo of Leymus racemosus (Leymus racemosuss)

Phonetic Spelling:LEY-mus ray-se-MO-sus

Genus:Elymus

Species:racemosa

Family:Poaceae

Cool-season grass boasts a vibrant hue that can enhance various landscapes. Thriving in shaded environments, it grows rapidly and features a slender appearance. Its distinctive color offers a fresh and enjoyable perspective on grass. However, it's important to note that this nitrogen-absorbing plant can have negative effects on the environment.

Leymus racemosus Feature Summary

Leymus racemosus Image Gallery

Tags

#invasive
#blue
#green
#ornamental grass
#grass
#spreading
#blue-green leaves
#gray-green leaves

Similar Plants

Leymus racemosus Feature Summary

Attributes
SE. & E. Europe to Siberia and Caucasus
Perennial
Flowers
The narrow, blue-green spike in early summer that turns beige
Blue
Green
Leaves
steel-blue flat foliage can be invasive (spreads by rhizomes)
Green
Blue
Cream/Tan
Whole Plant Traits
Ornamental Grasses and Sedges
Spreading
Coarse
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
Fruit
Caryopsis
Landscape
Heat
Wet Soil
Dry Soil
Invasive Species

Leymus racemosus Attributes

Leymus racemosus: Country Or Region Of Origin

SE. & E. Europe to Siberia and Caucasus

Leymus racemosus: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Leymus racemosus: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Leymus racemosus Flowers

Leymus racemosus: Flower Description

The narrow, blue-green spike in early summer that turns beige

Leymus racemosus: Flower Color

filter_vintage
Blue
filter_vintage
Green

Leymus racemosus: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Leymus racemosus: Flower Bloom Time

Winter
Spring
Summer
Fall

Leymus racemosus Leaves

Leymus racemosus: Leaf Description

steel-blue flat foliage can be invasive (spreads by rhizomes)

Leymus racemosus: Leaf Color

spa
Blue
spa
Cream/Tan
spa
Green

Leymus racemosus: Hairs Present

No
Yes

Leymus racemosus: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Leymus racemosus Whole Plant Traits

Leymus racemosus: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Leymus racemosus: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Leymus racemosus: Texture

Fine
Medium
Coarse

Leymus racemosus Cultural Conditions

Leymus racemosus: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Leymus racemosus: USDA Plant Hardiness Zone

thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Leymus racemosus Fruit

Leymus racemosus: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Leymus racemosus Stem

Leymus racemosus: Stem Is Aromatic

No
Yes

Leymus racemosus Landscape

Leymus racemosus: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Leymus racemosus: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy