Euphorbia tubiglans is a dwarf, tufted, spineless succulent distinguished by its thick, fleshy rootstock or caudex. The short main stem is constricted into a very narrow neck which joins the branches at the apex of the underground rootstock. The main stem produces a cluster of 2-5 aerial upright, columnar branches, up to 8 cm tall and up to 2 cm in diameter, but often longer in cultivation, dark blueish green in color, with a waxy bloom, each on a stalk-like neck up to 1 cm long, and with 5 to 6 longitudinal ribs. The ribs are somewhat obtuse, with very small tubercles. Flowers are unisexual, male and female cyathia on separate plants. The peduncles are up to 2 cm long, reddish, supported by 3 small bracts.
Scientific Name: Euphorbia tubiglans Marloth ex R.A.Dyer
How to grow and maintain Euphorbia tubiglans:
It prefers full to partial sunlight. Provides good sunlight at least 3-5 hours of the day, and turn it regularly so that your plant doesn’t begin to grow lopsided.
It grows well in well-draining, gritty soil or cactus potting mix. They are not particular about soil pH, but they cannot tolerate wet soil.
You can allow the soil to dry out between each watering. Before watering the plant check underneath the pot through the drainage holes to see if the roots are dry. If so then add some water. Do not water too often to prevent overwatering, that can potentially kill it off.
It prefers an optimal temperature of 60 degrees Fahrenheit – 85 degrees Fahrenheit / 16 degrees Celsius to 29 degrees Celsius.
Fertilize every two weeks with a diluted balanced liquid fertilizer during its growing season in the spring and summer. Avoid fertilizing your plant during the fall and winter months.
It can be easily propagated by cuttings. Take cutting in spring, which needs to be dried out for a couple of weeks in shade before potting. This can be tricky, because of the exuding sap. Rooting hormone is recommended with Euphorbias. Also can be propagated from seed, but it can be difficult to germinate.
Pests and Diseases:
Euphorbia may be susceptible to mealy bugs, scale insects, occasionally spider mites.