Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius - Umbrella Papyrus
Cyperus alternifolius
umbrella papyrus, umbrella grass
The papyrus plants have passed away! Well, what else can I say? ...
miguel, 26/08/2024
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Description
The alternate-leaved Cyperus, also known as Papyrus or alternate-leaved Nutsedge, is a beautiful large perennial that thrives in moist soils and mild climates. With its unique silhouette composed of long stiff stems topped with bracts gathered in an umbrella shape it bears a resemblance to its cousin the Nile Papyrus, but it has a more modest growth, a stiffer appearance, and a greater ability to withstand often dry interior atmospheres. Growing this evergreen and frost-sensitive perennial in open ground is only possible in the mildest regions without any risk of severe frost.
The alternate-leaved Cyperus, also known as umbrella papyrus or umbrella grass, belongs to the family Cyperaceae. It is native to marshy areas of Madagascar and requires constantly moist soil. Today it is cultivated in all temperate regions for its ornamental qualities, particularly as a houseplant.
This exuberant semi-aquatic plant develops numerous leafless, stiff stems from its rhizomes, reaching a height of about 1m (3.3 ft) in our climates. It spreads laterally, in theory without any limit. Each stem bears a relatively narrow crown composed of straight and relatively thin radiating bracts, in a vibrant green color. In spring, a small inflorescence appears at the center of each crown composed of tiny pale yellow flowers that turn brown in summer when ripe. These flowers give rise to seeds that are dispersed by the wind. The Cyperus or Papyrus reproduces through the dissemination of its seeds and vegetatively through the lateral growth of its rhizomes. Unlike true Nile Papyrus, it can be easily propagated by immersing its heads in water.
The alternate-leaved Cyperus, a wonderful waterside plant in very mild climates, also makes a beautiful terrace or indoor plant, very easy to cultivate as long as the soil in which it is planted remains consistently moist. It will be marvelous around a raised pond on a terrace, in the company of e.g. Rhodocoma gigantea, another splendid Restio. These luxuriant perennials will charm enthusiasts of beautiful lush and exotic plants due to their bamboo-like silhouette or their monumental clusters of large feathery plumes. Imperial as a standalone plant, it is also a guranteed success combined in open ground or in a pot with purple or green-leaved cannas, bamboo, Nandina, Dierama, persicaria, or even Gomphostigma virgatum.
Properties: Cyperus are air-purifying plants for confined atmospheres.
Cyperus alternifolius - Umbrella Papyrus in pictures
Flowering
Foliage
Plant habit
Botanical data
Cyperus
alternifolius
Cyperaceae
umbrella papyrus, umbrella grass
Madagascar
Planting and care
Plant Cyperus alternifolius in a very sunny location, in a mixture of potting soil and garden soil kept consistently moist, for example by placing a deep saucer filled with water underneath the pot. From April to the end of September, apply liquid fertiliser twice a month. Prune the dry stems away in November. Overwinter your Papyrus in a frost-free and very sunny location, with little or no heating. If you grow Papyrus indoors it is sometimes useful to mist its foliage from time to time, due to often very dry interior atmospheres. During the warm season, from April-May to October, your potted Papyrus can be displayed on the terrace or balcony, in full sun. Exposing it to direct sunlight should be done gradually, to prevent burning the foliage after winter. Divide your papyrus when it becomes too large, and give some as gifts to your friends and neighbours. Keep an eye out for the appearance of whiteflies or red spiders indoors. These pests thrive in dry and warm environments.
In the ground, if temperatures do not drop too low in winter, the submerged stump can survive and the plant can regenerate the following spring. Away from mild climates it is essential to grow Papyrus in a pot.
Multiply by dividing the stumps from spring to summer or, also very easily, propagate the tips of stems by turning upside down and submerging in water.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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