Carex pensylvanica
Carex pensylvanica
Carex pensylvanica
Carex pensylvanica
Carex pensylvanica
Pennsylvania sedge, Oak sedge.
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Description
The Carex pensylvanica, also known as Pennsylvania Sedge, is native to eastern Canada and the United States. It forms a low tuft of flexible, evergreen foliage, and blooms with discreet brown spikelets. This Carex thrives in partial shade in ordinary, moist to wet, well-drained soil. However, it tolerates and adapts to dry shade. Therefore, it can be used as an alternative to grass in a lightly trodden and minimally mowed area, in the shade, where grass fails to grow, or in areas of the garden that are rarely or never mowed.
The Carex pensylvanica belongs to the Cyperaceae family. In its natural habitat, it grows in thickets and dry woodland areas in eastern and central North America, from Quebec to Manitoba. This rhizomatous perennial plant, resembling grasses, has a running growth habit and a trailing habit. It forms a slightly loose tuft, reaching 30 cm in height if not mowed. Its leaves, evergreen in winter, sheathing at the base, are long, slender (4 to 8 mm wide), linear with pointed edges, and slightly trailing. They are green in color. In spring, in April-May depending on the climate, inconspicuous brown spikes appear on the floral stems. The plant is monoecious (male spikelets above female flowers). This carex does not tolerate heavy foot traffic. It can tolerate 2 to 3 mowings per year, or you can choose not to mow it at all.
Carex pensylvanica particularly thrives in any type of moist to wet, partial shade area, but it tolerates drought and shade. In full sun, the soil must remain consistently moist. It is a low-maintenance ground cover in areas of the garden with minimal foot traffic. It helps suppress weed growth. It can also be planted under shade perennials. Like grass, it struggles to grow during dry summers. In spring, it is one of the first plants to resume growth.
Carex pensylvanica in pictures
Flowering
Foliage
Plant habit
Botanical data
Carex
pensylvanica
Cyperaceae
Pennsylvania sedge, Oak sedge.
North America
Planting and care
The Carex pensylvanica is an easy-to-grow plant that thrives in partial shade, in any well-drained, ordinary garden soil. It also tolerates drier and shadier soils, as well as moist conditions in full sun. It has the ability to colonize areas where it is happy. Water generously at planting, which should be done outside of freezing periods. Avoid excessive fertilizer applications.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.