Carex flacca - Blue Sedge
aka Carex glauca
This tough sedge can grow in very diverse habitats. It is often found
in full sun with prairie grasses but will do well in the shade of large
trees. Blue Sedge combines beautifully with the tiny spring blossoms
of Scilla or the more robust foliage of Luzula
Suitable for rock gardens and excellent as a ground cover, when given
If you want it to spread quickly (such as for erosion control on shorebanks),
cutting it back by three quarters will force lateral shoots to come
up. This can be done 3 to 4 times during the growing season.
Carex flacca is a widely variable plant in color and form.
Description: cool season; evergreen in warm climates;
Foliage - blue-grey; narrow blade width; 15-30 cm (6-12") tall
Flowers - June through July; 30-40 cm (12-16") in height
Ideal conditions: full sun to light shade; moist
to dry soil
Coldest zone: 4, possibly colder (find
your zone; further info on plant hardiness)
Season of interest: evergreen
Drought tolerance rating: 2 (water to root depth once
every 2 weeks); further info
Native to: grasslands, sand dunes and marshes of Europe,
North Africa and is naturalized in eastern North America.
Recommended spacing between plants: 20-45 cm (8-18")
why such a difference?
Pronunciation: Carex (KAIR-ex) flacca (FLAH-ca)
More ornamental grasses
Compare Carex flacca to our other grasses in this handy