Carex is a large genus of perennials with triangular, grass-like stems that includes over 1,500 species. Sedge thrives in a variety of conditions, including moist and/or shade. It works well in the foreground or as an edger. Slowly spreads.
Does Carex plant spread?
Carex oshimensis is a plant that grows in Japan. The grassy, evergreen sedge ‘Evergold’ has long golden leaves with rich green edges. It forms a lovely, arching cluster that stays put. It looks great planted beside ponds or at the edge of borders, and it’s wonderful for planting in annual container displays as a foil for brilliantly colored flowers. It has received the renowned Award of Garden Merit from the Royal Horticultural Society (AGM).
Is Carex fast growing?
Sedge plants require very little attention. They don’t require much fertilizer, are easy to move, and grow quickly enough to be utilized as a lawn. Sedge plants tolerate little mowing in lawn circumstances and require little more maintenance, unlike regular turf grass, which requires a lot of nitrogen and can become weedy.
Feed the plant with a light nitrogen plant food in the early summer when fertilizing.
Irrigate your plants in the sun at least three times every month. Irrigate only once a month for plants in shadier places unless your region is experiencing severe drought, in which case water twice a month. Watering should be stopped in the fall and winter.
To maintain a more orderly appearance, trim back sedges after they have bloomed if desired. You can mow the plants, but do it with a sharp blade and no lower than 2/3 of the height of the plant. Divide the sedge between spring and early summer if the plant begins to die down in the center. This will result in more plants. Cut off the seed heads in early spring if you don’t want the plant to seed.
How does sedge grass spread?
This sedge’s fine-textured leaf gives a softly arching impression. It forms a low, open sod 8 to 14 inches tall by spreading via rhizomes, but not thickly. The Pennsylvania sedge is a tough and adaptable plant that thrives in dry shade and damp, organically rich soil.
Uses: This is a good backbone for a mixed ground cover planting. Shooting stars (Dodecatheon meadia, Zones 48), spotted geranium (Geranium maculatum, Zones 48), Jack-in-the-pulpit (Arisaema triphyllum, Zones 49), and wild strawberry (Fragaria virginiana, Zones 49) are all good companion plants. When planted together, they provide a delicate aesthetic that resembles a naturally occurring plant community. On a slope, Pennsylvania sedge can also help to minimize soil erosion.
Can you walk on Carex?
I’ve tried in the past to encourage the pieces of grass that cling to life grimly, but it appears that what they actually want is hospice care. Weeds, particularly Common Plantain (Plantago major), were thriving.
When I overwintered my pots planted with Tulips and other bulbs, I accidently covered most of the grass here. So I tried something different: a small sedge meadow.
Because I didn’t remove out all of the possibly competing plants, I say meadow rather than lawn. It was oddly pleasant to pull out all of the Plantain by hand (and surprisingly, it has been slow to grow back). I did, however, leave the Common Blue Violets alone. Either they’ll get along with the Sedge or they won’t. I don’t think they’ll be able to squeeze out the Penn Sedge based on their previous behavior in this area.
I also left a few patches of living grass, which is something that everyone advises against. But, because this grass never grows much taller than 1 or 2 inches, what’s the harm?
Finally, I added a paver border to the “meadow” so that it has a visible separation from the lawn (such as it is), albeit both can be walked on.
Penn Sedge has a lot of positive characteristics. It reaches a height of 6 to 12 inches and can withstand considerable foot traffic. Shade and dry soil are not a problem for it. It also attracts ground-feeding birds, such as Sparrows and Easter Towhees, with its seeds. It can eventually produce a solid ground cover.
Because the soil in this site is compacted more than it should be, I’ll top dress it with compost in the fall and spring.
Anyway, I planted 25 plugs and 25 bare root seedlings of Penn Sedge this spring. Except for one, the plugs all took and the bare root plants all died. I’m not sure why, but I’m not going to grow bare root sedges in the future.
During a chilly and rainy week in August, I bought up a few more at a nearby garden center. This proved to be a mistake, since the weather quickly became hot and dry (oh, when will I ever learn?). I only kept the fresh Sedges alive by watering them by hand.
I bought a few more in late September, when the weather began to turn fall. Those are in good shape.
We should find out next year whether or not this entire initiative was well-conceived. I’ll definitely need to plant a few more plugs, but I’m considering including some other Sedge species. If anyone has any recommendations, please let me know.
How do you take care of Carex grass?
Plant Care for Carex Sedge prefers part shade and moist, well-drained soil. Carex is a low-maintenance plant that requires little to no food. In the early spring, cut back by 1/3 or simply pull off dead blades to freshen up the appearance. The optimal time to divide is in the spring.
Where does Carex grass grow?
The majority of carex prefer moist soil in the sun or mild shade. Some people favor damp soil, while others prefer acid dirt. When grown in the sun, bronze-leaved cultivars provide their best leaf color.
What can I grow with Carex?
Carex testacea can be grown with other drought-tolerant grasses or perennials, such as sedum (shown), or as a specimen plant in a large container. In a herbaceous border, its architectural form makes it a great foil for cottage garden plants. Grow in full sun to moderate shade in well-drained soil for optimal results.
Can Carex grow in full sun?
- The variegated broad green-blue leaves of the Rekohu Sunrise Sedge (Carex trifida ‘Rekohu Sunrise’) have faint golden margins. Brownish flower spikes stand tall above the foliage in the summer. Once established in our milder Seattle climate, this sedge can withstand drought. It prefers moist, well-drained soil and direct sunlight (for best coloring). This sedge truly pops against rocks, walls, especially in container gardening.

