Species Japanese blood grass
Burgundy-green leaves.

Japanese blood grass

Imperata cylindrica 'Rubra'

Japanese blood grass, or Imperata cylindrica 'Rubra', is a striking ornamental grass with brilliant red foliage, creating a dramatic contrast in the garden. The grass is clump-forming and relatively low maintenance. It grows in sunny to lightly shaded areas with moderately moist, well-drained soil. It can also be grown as a container plant that can be overwintered indoors with bright light. The narrow, bright red blades reach up to 30 cm in height and dwarf other ornamental grasses. Deer and other common garden pests tend to ignore this grass, ensuring it won't get eaten or pecked away. Its bright color, adaptability, and low maintenance make it a popular choice for borders and larger containers.

Cycle:

Perennial

Watering:

Average

Propagation:

Division,Cutting,Seed Propagation,Layering Propagation

Hardiness Zone:

5 - 9

Flowers:

Rarely flowers Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

bronze,red

Growth Rate:

Low

Maintenance:

Moderate

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Invasive:

Yes

Care Level:

Moderate

watering

Japanese blood grass should be watered deeply and thoroughly about once per week during the growing season (spring and summer). During hot and dry summer months, increase watering slightly, if the soil begins to dry out between weekly waterings; otherwise, stick with the weekly schedule. During fall and winter, reduce watering to once every 1-2 weeks. Always check the soil moisture level before watering, and only water when the soil feels dry to the touch. Avoid over-watering, as this species does best with some water stress.

sunlight

Japanese blood grass (Imperata cylindrica 'Rubra') requires full sun to partial shade, preferably 6 to 8 hours of direct sunlight per day. The ideal location is an area with morning sun and some partial shade in the afternoon. It will also tolerate full shade, but may not produce as vibrant of foliage color or an abundance of flowers.

pruning

Japanese Blood Grass should be pruned 2 to 3 times a year. Prune in mid-spring, mid-summer, and late-fall to ensure the plant remains healthy and grows its strongest. Start by cutting off old foliage to new growth and remove any dead or diseased foliage as it appears throughout the season. Dead growth should be approximately 1/3 of the plant, removing no more than that so the plant can continue to flourish.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Japanese blood grass typically starts flowering in late spring or early summer, usually between May and June.

Starts Flowering

Japanese blood grass typically starts flowering in late spring or early summer, usually between May and June.

Hardiness Map