Species blue green sedge
Green leaves and brown flowers arranged on top of the green stems.

blue green sedge

Carex flacca

Also Known As - Glaucus Sedge,Blue Sedge,Blue Sedge
The Blue Green sedge (Carex flacca) is a unique and amazing species of wetland grass. It is also known as Glaucous Sedge, and produces a deep blue hue in its foliage. Its evergreen foliage displays a thin ribbon-like growth habit, and delicate textured leaves. Its flowering habit contributes to its unique color palette. It is a great addition to any wetland garden, and can be combined with other grasses and ferns for an interesting texture and color combination. This sedge tolerates a variety of soil types, responds well to pruning, and is drought tolerant. Whether you are creating a woodland-style landscape or a serene wetland look, this sedge will bring out the best of your garden.

Cycle:

Perennial

Watering:

Frequent

Propagation:

Seed Propagation

Hardiness Zone:

4 - 9

Flowers:

Light green Flowers In Summer

Sun:

Sun, Partial Shade

Soil:

Well-drained

Fruits:

Fruits In Summer Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Blue green sedge (Carex flacca) is an attractive perennial grass-like grass that needs moderate watering in order to thrive. It is best to water your blue green sedge deeply and infrequently, allowing the top 2 to 3 inches of soil to become slightly dry before watering again. During the hotter months, water blue green sedge about once every 7 to 10 days. During the cooler months, water your blue green sedge only if the soil begins to become dry—a good rule of thumb is to check the soil about every 10 to 14 days. To ensure you’re getting adequate water to the roots, use a soaker hose, which will allow the water to saturate the soil around the roots.

sunlight

Blue green sedge (Carex flacca) requires a minimum of 4 hours of sunlight every day. For optimal growth, however, the plant should get about 8 hours of direct sunlight during peak summer months. If the plant is in an area with direct and full sun, it may require less light during the winter months. The best times to give blue green sedge adequate exposure to sunlight is between 10am and 4pm during the summer months, and between 8am and 2pm in the winter.

pruning

Blue green sedge should be pruned once a year, in the late winter or early spring. Pruning should be done by cutting away any dead fronds or any fronds that are overgrown. Pruning should also include removing any dried or brown foliage as this can help the plant to concentrate its energy on developing new and healthy foliage. To ensure that the plant remains healthy, all clippings should be removed as soon as possible. It is important to prune only a fraction of the plant's foliage and to leave the bulk of the plant intact so that it can continue to produce healthy and vibrant growth.

Season

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

Blue green sedge typically starts flowering in April.

Harvest Fruit

The harvesting season for Carex flacca typically begins in June and continues through August.

Hardiness Map