Senecio haworthii
Woolly Senecio
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Woolly Senecio (Senecio haworthii) - Description
Senecio haworthii also known as Woolly senecio is a perennial dwarf shrub of the Senecio genus that grows in South Africa usually between the altitudes of 900 and 1200 meters. Its first description was written by Adrian Hardy Haworth, in Miscellanea naturalia, 1803, p. 189, with the name of Cacalia tomentosa.
Woolly Senecio (Senecio haworthii) - Blooming
Daisy like flowers, usually carried in clusters, consisting of densely packed centers of disk florets surrounded usually by ray florets.
Woolly Senecio (Senecio haworthii) - Growth
Diverse genus. Annuals, biennials, perennials, climbers, shrubs and small trees. Foliage is especially diverse, rounded, triangular, deeply cut, or fernlike; fleshy or succulent, and a few have hairy to woolly white leaves (like S. cineraria, aka Dusty Miller).
Woolly Senecio (Senecio haworthii) - Planting
Sow seeds in spring. Basal shoot cuttings can also be taken come springtime for vegetative propagation.
Woolly Senecio (Senecio haworthii) - Pest
In enclosed growing areas, insect pests such as spider mites, whiteflies and aphids can be troublesome. Most Dusty Millers are prone to problems with rust.
Woolly Senecio (Senecio haworthii) - Interesting facts
Dusty Millers are so named because most species in the genus appear as though their foliage is dusted with a white or silver coating. This "coating" is actually a collection of hairs, or trichomes in botanical terms, which cover the surface of the shoots. The mat of trichomes being white or silverish is no mistake either. The light color of the trichomes helps to deflect solar radiation and protect the plant from overheating. Additionally, it is important to note that all parts of the plant can cause abdominal discomfort if ingested.
Woolly Senecio (Senecio haworthii) - Soil and irrigation
Dusty Millers have a variety of soil needs, but most do best in moderately fertile well-drained soils.
