Species Thick Head Sedge
brown-lime flowers with green stems

Thick Head Sedge

Carex pachystachya

Also Known As - Chamisso Sedge
Thick Head Sedge is a perennial native to North America. It typically grows up to 2-3 feet in height and has distinctive flattened flower heads. The leaves are a bright, lush green and very dense. This plant is adaptive to various climates and soils, and grows best in partly shady areas. The flowers emit little but pleasant aroma, making them a great addition to home gardens. They can also be planted en masse for a variety of interesting accents in the garden. The Thick Head Sedge is widely appreciated for its bright seed heads, which often persist late into the winter months.

Watering:

Frequent

Propagation:

Division,Cutting,Seed Propagation,Stolon

Hardiness Zone:

Flowers:

Red Flowers

Sun:

Sun

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

watering

Thick Head Sedge should be watered regularly and thoroughly. Watering should be done either early in the morning or in the evening. During the summer months, it is important to water at least once per week to keep the soil slightly moist. During the winter months, watering can be reduced to once every 2 weeks. In either case, water until the water seeps out of the drainage holes at the bottom of the pot.

sunlight

Thick Head Sedge (Carex pachystachya) requires full sun or partial sun for 4-6 hours a day. It can also tolerate partial shade, but for optimal growth, it is best to keep it in direct sunlight. More sun will mean faster growth and increased vigor, but the plant should be given some shade in the hottest part of the day, especially during the summer months. The optimum temperature range for this species is 55-75 degrees Fahrenheit, and it should be avoided temperatures colder than 40 degrees Fahrenheit or warmer than 85 degrees Fahrenheit.

pruning

Thick Head Sedge should be pruned 2 to 3 times a year. In mid-spring, the outer leaves should be trimmed or cut down to a size just below the clump. In late summer or early fall, cut back taller stems and dead foliage. This will promote new growth the following spring. Finally, in late fall, tidy up the plant by removing any discolored foliage or deadheaded flowers. All pruning should be done by hand with a pair of sharp gardening shears.

Season

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

Thick Head Sedge typically starts flowering in May.