Spiny edges

Euphorbia neohumbertii from Madagascar

 

E.neohumbertii as a distant relative of the Crown of Thorns group belongs to a group of plants where the spines are arranged in comb-like fashion in vertical rows. Typical for this species are also the large leaves, the large leaf scars on the shoots and the apparently closed cyathia in the colours red, white, green.

 

 

 

 

The bisexual cyathium is almost entirely enveloped by the cyathophylls and its composition can hardly be recognized. Only the anthers or styles appear through a small opening at the top. Impractical for the owner is that therefore it can hardly be seen if the plant is bearing fruit.

 

The cyathia appear in spring generally before the beginning of growth, about in March. For pollination you need two different clones.

 

Because of the large leaves E.neohumbertii needs ample water. It will still grow fairly slowly. It appreciates a semi-shady spot on the window sill, full sun should be avoided.

 

As a typical Madagascan euphorbia E.neohumbertii also needs a warm (min. 15°C) and slightly damp environment in winter. The leaves will be shed during this time and leave the typical leaf scars.

 

Since E.neohumbertii does not branch and does not form any runners it can only be propagated by seed.

 

 

 

 

Similar species with the same cultivation requirements are

- E. viguieri: with orange-green cyathia

- E. capmanambatoensis: with light green cyathia

 

Sources for E. neohumbertii:

DE: Uhlig-Kakteen

US: Aridlands

US: Bob Smoley

US: The Great Petaluma Desert

 

 

Recommendations for the beginner

Photos and data

 

 

 

 

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