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Senecio haworthii (Woolly Senecio)

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Scientific Name

Senecio haworthii (Sweet) Sch.Bip.

Common Names

Woolly Senecio, Cocoon Plant

Synonyms

Cacalia haworthii (basionym), Cacalia canescens, Kleinia haworthii

Scientific Classification

Family: Asteraceae
Subfamily: Asteroideae
Tribe: Senecioneae
Subtribe: Senecioninae
Genus: Senecio

Description

Senecio haworthii is a dwarf, perennial, succulent shrub up to 1 foot (30 cm) tall, with stunningly attractive, upright, cylindrical, succulent leaves that are pure white due to the fine white hairs covering all surfaces of the leaves. It produces bright yellow flowers on a short, terminal inflorescence.

Hardiness

USDA hardiness zone 9b to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).

How to Grow and Care

Established plants are extremely drought tolerant. They do need some water, during the summer, but do not leave the soil wet for prolonged periods. Allow the soil to dry out between waterings in the winter, when they are somewhat dormant. Since they are growing in sandy soil, nutrients will need to be replenished. Fertilize annually, but lightly. Too much fertilizer will cause a lot of leggy growth.

Taller varieties can get floppy. You can prune them back to where the stem is firm, in very early spring. You can even root the cuttings.

Plants can be divided or repotted in early spring. If you are growing them in containers, they enjoy spending the summer outdoors. Wait until there is no danger of frost and move them back indoors in the fall.

Senecio can be grown from either seed or cuttings. Seeds prefer warm temperatures, around 55˚F (13˚C). And constant moisture to germinate. Cuttings are easier and faster. Cut during the growing season, early spring to fall. Root in sandy soil, in containers.

Few pests bother Senecio. They can occasionally be affected by scale and mealy bugs. Rabbits found my String of Pearls quite tasty… – See more at: How to Grow and Care for Senecio

Origin

Senecio haworthii is native to South Africa.

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