Euphorbia pentagona - Pincushion Euphorbia
Euphorbia pentagona is a medium-green Euphorbia; starts off as having a pentagonal prism shape where each vertex is extruded outwards, and each side is a mild concavity, along the height of the euphorb. Spines, red in colour when fresh, exit the body along each extrusion. Native to south africa. in its natural habitat it can reach more than 2 meters height. As the spines age, they tend to lose their color. The cross-sectional polygonal shape can gain extra vertexes as new branches grow from the sides. Often branches grow from where a spine once was.
Description: A compact perennial cactus-like shrub with prominent ribs that freely branches above and can grow 2,5- 3 m tall.
Stem: Thin columnar, erect, rebranching often in whorls, 1-4 cm thick, bright glossy green or dark green turning grey with age.
Ribs: 5-6, deeply grooved between, whit shallow tubercles.
Spines: The solitary “spines” are sterile dry peduncles up to 1,5 cm long, each with 2-3 tiny bracts, they are pinkish and finally grey.
Leaves: Up to 4 mm long, liner and early deciduous.
Flowers: The buff-lavender to purplish cyathia are small ( approx 4 mm in diameter) and borne at the branch tips. The are solitary or in 2-3 rayed cymes, peduncles short, often persistent. Nectar glands elliptic, separate.
Fruits: Subglobose, approx 6 mm in diameter, subsessile.
EUPHORBIA PENTAGONA CARE
Euphorbia pentagona does best, if grown on a bright and sunny place the year round. if placed in the garden during summer, please make sure that rainwater can easily flow out of the pot. sitting in water will cause rot.
It grows well in a good drained mineral potting substrate.
A mix of potting soil, seramis (lay granulate), pumice and coarse sand (1:1:1:1).
Euphorbia pentagona can be deep watered from spring to fall. what’s flowing out of the pot’s hole must be removed after a few minutes. allow to dry before adding water next .
In spring and summer a half diluted cactus fertilizer can be given monthly. during fall/winter there is no need to feed.
E. pentagona can be cultivated at room temperature throughout the year with a winter minimum of 13 °C/55.4 °f.
The colder it’s placed at that time, the less water is needed.
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Euphorbia schoenlandii
Euphorbia schoenlandii is a small pickle shaped succulent srublet with prominent spiny tubercles, sometimes resembling a green pineapple, usually single stemmed but may branch with age. The stems of Euphorbia schoenlandii can reach 20 cm thick and 100 cm tall.
Stem: Up to 20 cm thick and 100(-130) cm tall, upright growing and club-shaped with large conical tubercles up to 12 mm long.
Spines: 2,5-5 cm long, the “spines” are only the stout, woody, withered remains of fertile peduncles which endure.
Flowers: Cyathia (8 mm Ø) solitary or in simple cymes, arising above the spines, peduncles up to 2,5 cm long with a few 2-3 cm long scattered and deciduous bracts. Nectar glans oblong, margin with 3 to 8 entire or bifid linear, separated, processes up to 1,5 mm long.
Fruit: Globose to sub-globose up to 6 mm wide, sub-sessile.
Seed: Oblong up to 4 mm wide.
Height: 4-6 ft. (1.2-1.8 m)
Sun Exposure: Full Sun
Bloom Color: Pale Yellow
Bloom Time: Late Fall/Early Winter
Cultivation: Like a sunny position. It does best in a mineral soil, good drainage is essential. Water sparingly during the summer months and keep dry in winter. It is a slow growing long lived plant and once established, it will be content in its position and with its soil for years. It can tolerate moderate shade, and a plant that has been growing in shade should be slowly hardened off before placing it in full sun as the plant will be severely scorched if moved too suddenly from shade into sun.
Propagation: It is propagated from seed sown during spring or summer. Germination occurs within 3 weeks, but it can be reproduced by cuttings as well (if available). Flowering can be achieved within 5-8 years.