Rosa acicularis

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Rosa acicularis Lindl.

Rosaceae

Life form: shrub

Exposure: sun - Exposure: half shade   2

Moisture: dry bis Moisture: moderately moist

Soil: sandy loam - Soil: gritty loam

Arrangement: alternate
Leaves: decidious

Shape: elliptic

Division: imparipinnate

Shape: five-stellate
Fruit: hip

63D / e981ab 

Inflorescence: solitary

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Rosidae
Superordo:
Rosanae
Ordo:
Rosales

Rosa acicularis, commonly known as prickly rose, needle rose, is a shrub.

Naming

Rosa acicularis was described by John Lindley. The name is considered as validly published.

Taxonomy

Rosa acicularis is a species in the genus Rosa which contains approximately 180 to 623 species and belongs to the family of the Rosaceae (Rose Family).

Characteristics

Growth

The shrubs reach heights of 1 to 3 metres and are comparatively fast-growing and short-lived. They have a erect habit and produce multiple stems, the main growing season is in spring and summer.

Wood and Bark

Leaves

Rosa acicularis is deciduous. The imparipinnate leaves are alternate. The elliptic leaflets are serrate and petiolate. The foliage is porous.

Flowers and Fruits

Rosa acicularis produces solitary showy, pink five-stellate flowers from June to July.

From summer to autumn the shrubs produce an abundance of ornamental, edible red hips that are persistent on the plant.

Root System

Distribution

Rosa acicularis is native to Canada, the Rocky Mountains, the northern Prairie States of the US, the central Northeast of the US and the Northeast of the US.

Cultivation

The shrubs prefer a sunny to half-shady situation on dry to moderately moist soil. The substrate should be sandy-loamy or gritty-loamy and comparatively poor with a pH between 6,8 and 7,5. The plants need a soil depth of at least 15 centimetres for good growth. They tolerate temperatures down to -45°C (USDA zone 2) and need a frost-free period of at least 29 weeks.

Tolerance of special soil conditions

  • none: soil salinity, anaerobic soil
  • low: drought, calcareous soil

Uses

The ornamental value of Rosa acicularis lies especially in the attractive autumn aspect and its fragrance. The recommended planting distance is 90 to 140 centimetres.

Maintenance and Propagation

  • Plants can be cut back down to the trunk (coppicing) as necessary.

Propagate by sowing. The seeds require vernalization. Also by cuttings.

Cultivars

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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