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Riyadh Plants

Cacti, Succulents

Arabic Name

تاج الشوك، أم اللبن

Latin Name

Euphorbia milii var. splendens , Euphorbiaceae

English Name

Crown of Thorns

تاج الشوك، أم اللبن

This succulent is native to Madagascar: it is often seen in Arriyadh in planters, usually with the intention of forming a barrier. Its edged stems are fleshy and able to store water while the foliage is not thickened. The obovate, dark-green leaves are found on new growth only. Male and female flowers are borne on the same plant, but both are inconspicuous. Nevertheless, a burst of colour is shown in spring by bright-red bracts. Sparse flowering appears during the other seasons too. It is attractive all year round for its strange appearance of thorny shoots that made it deserve the common name Crown of Thorns. Injured plants exude a milky, poisonous sap that can irritate skin. Pruning is not necessary, but is carried out to multiply the plant by cuttings. For this purpose, tips of 10 cm length are cut and placed in water until the sap stops flowing. Afterwards, they should be allowed to dry before being dipped in rooting hormone and placed in a mix of sand, perlite and humus. Excellent drainage is essential for mature plants too, since both waterlogging and overwatering by sprinklers kill the plant, especially in winter. Partial sun suits it best and extends the lifespan of the foliage. Drought is tolerated when the plants are established, but it also limits the endurance of the leaves. Slow-releasing fertilisers can be applied in spring to ensure a healthy appearance and an impressive floral display. Scale insects may infest plants on inappropriate sites. Frosts are not tolerated and immediately damage the foliage.

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General information

Euphorbiaceae Family Name : Euphorbiaceae
Sub Tropical Origin: Sub Tropical
Very Humid , Semi Humid , Semi Arid , Very Arid Rainfall: Very Humid , Semi Humid , Semi Arid , Very Arid
Cuttings , Sowing and Pricking Out Propagation: Cuttings , Sowing and Pricking Out
Moderate Maintenance: Moderate

Environmental conditions

Resistant Urban Climate: Resistant
Resistant Desiccation: Resistant
Vulnerable Drought: Vulnerable
Low Irrigation: Low
Moderate < 3,000 ppm  Salinity: Moderate < 3,000 ppm
0°C  Hardiness Zones: 0°C

Plant shape

Slow Growing  Vigour: Slow Growing
Height Height: From 0.5 To 2 M
Expansion Expansion: From 0.5 To 1.5 M
Semi Evergreen Foliage: Semi Evergreen

Flower

Colour Colour: Red Bright
Size Size: 1.3 CM
Flowering Period Flowering Period: From Early February Till Late April

Fruit

Capsule Type Of Fruit: Capsule
Size Size: 0.4 CM
Poisonous Toxicity: Poisonous

Location of Use :

Home Plant , Public Open Space , Pedestrian Precinct , Rock Garden , Massed Planting , Container Planting , Hillside Stabilization , Park Planting , Steppe Garden , Private Garden , Extensive Roof Garden , Roof Garden , Hedge , Flowering Hedge , Low Hedge , Wadi Farm Garden , Urban Area , Edging Plants

Other choices :

Ground Cover , Grouped Planting , Plant Used by ADA , Attractive to Birds , Attractive Flower , Attractive Shape