Thursday 10 September 2020

FFF 458 - ADENIUM

Adenium obesum is a species of flowering plant in the dogbane family, Apocynaceae, that is native to the Sahel regions, south of the Sahara (from Mauritania and Senegal to Sudan), and tropical and subtropical eastern and southern Africa and Arabia. Common names include Sabi star, kudu, mock azalea, impala lily and desert rose.

It is an evergreen or drought-deciduous succulent shrub (which can also lose its leaves during cold spells, or according to the subspecies or cultivar). It can grow to 1–3 m in height, with pachycaul stems and a stout, swollen basal caudex. The leaves are spirally arranged, clustered toward the tips of the shoots, simple entire, leathery in texture, 5–15 cm long and 1–8 cm broad. The flowers are tubular, 2–5 cm long, with the outer portion 4–6 cm diameter with five petals, resembling those of other related genera such as Plumeria and Nerium. The flowers tend to red and pink, often with a whitish blush outward of the throat.

Adenium obesum is a popular houseplant and bonsai in temperate regions. It requires a sunny location and a minimum indoor temperature in winter of 10 °C. It thrives on a xeric watering regime as required by cacti. A. obesum is typically propagated by seed or stem cuttings. The numerous hybrids are propagated mainly by grafting on to seedling rootstock. While plants grown from seed are more likely to have the swollen caudex at a young age, with time many cutting-grown plants cannot be distinguished from seedlings. This plant has gained the Royal Horticultural Society's Award of Garden Merit. The toxic sap of its roots and stems is used as arrow poison for hunting large game throughout much of Africa, and as a fish toxin.

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1 comment:

  1. Thank you for your discussion about Adenium, a new to me flower. I looked it up and it can grow in our climate here in Canada in particular, the Desert Rose. I do like succulents and have Hen and Chicks in my garden. Always something new to learn here which is wonderful!

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