'Rubra' - Japanese Blood Grass
AKA: Imperata cylindrica 'Red Baron'
FYI: Imperata cylindrica is on the US
Federal Noxious Weed List, and therefore we are not able
to ship even the red form of it to the US.
Most people familiar with Japanese blood grass will admit
that no other grass has such an intense red colour. In warm-temperate
climates this grass will spread out in all directions and
would perhaps be better grown in a container.
Also, keep an eye out for any blood grass that reverts
to its green form, as these will be even more invasive.
Growing in containers is the best way to keep this beauty
In our area Zone 5, gardeners find this to be a very slow
grower, so spreading is not an issue.
Description: warm season; spreader
Foliage is red; medium blade width; 25-30 cm (10-12") in
Flowers are uncommon
Form is upright and spreading
Ideal conditions: for best colour, open
sunny areas with ample water. Japanese blood grass is drought
tolerant but in hot dry climates it is best grown in some
Coldest zone: 5, possibly a sheltered
Zone 4 (find your zone; further
info on plant hardiness)
Suggested uses: hillsides, meadows, containers.
If used in a border it needs to be contained.
Partner with: Sedums, especially S. spurium
Fuldagult and S. ellacombianum (we
have both available as flats of 25 plugs); Kalimeris
Season of interest: mid-summer on, becoming
particularly colourful in the fall
Native to: Japan
When to plant and divide: late spring
to early summer
Recommended plant spacing: 30-60 cm (12-24")
why such a difference?
Drought tolerance rating: 3 (water to
root depth once a week); further
Pronunciation: Imperata (im-per-RAH-tah)
More ornamental grasses
Compare Imperata cylindrica 'Rubra' to
our other grasses in this handy