Aeonium haworthii explained

Aeonium haworthii, also known as Haworth's aeonium or pinwheel, is a species of succulent flowering plant in the family Crassulaceae. It is grown as a houseplant in temperate regions. It has gained the Royal Horticultural Society's Award of Garden Merit,[1] as has the cultivar 'Variegatum'.[2]

Distribution

A. haworthii is native to the Canary Islands and northern Africa, but it has been introduced to other areas of similar climate, such as Southern California.[3] In the US, it is suitable to be grown outside in USDA hardiness zones 9-11.[4] This species is drought tolerant and prefers full sun.[5] It is sometimes susceptible to aphids and mealybugs.[6] It is a sand-dwelling beach plant, a subshrub with rough, woody stems and rosettes of thick, red-edged green leaves which are triangular or diamond- or spade-shaped.

Description

It grows as a densely branched small shrub and reaches stature heights of up to 60 centimeters. The almost bare, somewhat mesh-like, ascending or hanging, winding shoots have a diameter of 3 to 6 millimeters. Their rather flat rosettes reach a diameter of 6 to 11 centimeters. The inner leaves are more or less upright. The obovate, green or yellowish green, often very heavily bluish, almost bare leaves are 3 to 5.5 centimeters long, 1.5 to 3 centimeters wide and 0.25 to 0.4 centimeters thick. They are pointed and trimmed towards the top. The base is wedge-shaped. The leaf margin is covered with curved eyelashes that are 0.4 to 0.8 millimeters long. The leaves are often reddish variegated along the edge.[7]

It has panicles of cream-colored pointed flowers produced in spring. The loose, hemispherical inflorescence has a length of 6 to 16 centimeters and a width of 6 to 16 centimeters. The peduncle is 1 to 9 centimeters long. The seven-to nine-digit flowers are on a 2 to 12 millimeter long, bare flower stem. Its sepals are bald. The pale yellow to whitish, pink variegated, lanceolate, pointed petals are 7 to 9 millimeters long and 1.2 to 1.8 millimeters wide. The stamens are almost glabrous to sparsely weak downy.[8]

Cultivars

External links

Notes and References

  1. Web site: RHS Plant Selector - Aeonium haworthii. 23 February 2020.
  2. Web site: Aeonium haworthii 'Variegatum'. Royal Horticultural Society. 3 January 2018.
  3. Web site: Aeonium haworthii 'Kiwi'. 2021-04-07. BBC Gardeners' World Magazine. en.
  4. Web site: 2019-06-01. Aeonium Haworthii Care: Growing Pinwheel Plants. 2021-04-07. Plant Care Today. en-US.
  5. Web site: Kernock Park Plants Ltd Aeonium haworthii 'Bicolor'. 2021-04-07. www.kernock.co.uk.
  6. Web site: Ltd. GardensOnline Pty. Aeonium haworthii GardensOnline. 2021-04-07. www.gardensonline.com.au.
  7. Reto Nyffeler: Aeonium haworthii . In: Urs Eggli (ed.): Succulent plant dictionary. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003,, p. 17 .
  8. Book: RHS A-Z encyclopedia of garden plants. 2008. Dorling Kindersley. United Kingdom. 1405332964. 1136.