The Astrophytum myriostigma cactus , is a species of the genus Astrophytum, which also known as Bishop’s Cap, Bishop’s Miter, Bishop’s hat, Monk’s Hood, Deacons Hat, Bishop’s Hood, Miter Cactus
It is a well-known cactus and is part of many collections and has no thorns.
The origin of Bishop’s Cap is the mountainous area of ??central Mexico, that is, the states of San Luis de Potosí, Nuevo León and Tamaulipas.
Description of the Astrophytum myriostigma or Bishop’s cap Cactus.
It is a globular or globular cactus, measuring between 10 and 25 cm in diameter and reaching 60 to 100 cm in height, occasionally.
Of green color, but it presents many variations that give whitish or grayish colorations.
It is a slow-growing cactus, usually has 5 ribs (the most common varieties, although it can have 4 to 8) and lacks thorns.
Over the years it becomes a columnar.
Along the ribs, the areolas are presented in cottony and brown. It has elongated, thin roots that grows directly from the stem and without a bulb.
The flowers of the Astrophytum myriostigma Cactus are large, about 3 to 6 cm in diameter, that arise in the areolas in the upper part of the cactus.
They are yellow and they are spectacular. Its half-life is approximately one week. It can take up to 6 years to bloom.
It flowers from spring until the arrival of autumn and the number of flowers depends on the size, age and health of the plant. In fact, there can be up to 6 more flowers.
To obtain fruits and seeds of the Astrophytum myriostigma Cactus, we must have at least two plants, since it does not self-pollinate.
How to grow the Astrophytum myriostigma also known as Bishop’s cap cactus
For your healthy growth, we must take into account some necessary care.
The ideal temperature will be of warm climates or greater than 20ºC during the day and not less than 10ºC at night. They tolerate the cold well, but not less than 5ºC.
It needs a high illumination, for its development and flowering so it need to sometimes be outdoors. Sun in the morning, with semi-shaded areas, is ideal.
How to water the Astrophytum myriostigma Cactus
The Astrophytum myriostigma Cactus needs humidity in summer, but watering should be once a week.
In winter, water every three or four weeks, depending on the ambient temperature.
Therefore, it requires little irrigation. Its roots are very sensitive to excess moisture. Be careful not to soil the substrate.
What substratum and fertilizer the Astrophytum myriostigma needs.
The Astrophytum myriostigma or Bishop’s cap needs a substrate, mixture of earth or compound of standard type. The best thing is that it is 50% coarse sand, 25% mulch or peat and another 25% garden soil.
It should be loose, not caked, with good drainage, porous compound without much organic material.
It does not require a fertilizer . With adequate substrate and good irrigation control, it is enough.
How to multiply the Astrophytum myriostigma
For its multiplication, use seeds, since it does not produce offshoots. They germinate easily.
However, you can cut the upper part of the stem of adult specimens and from there new buds appear on the stem.
The Astrophytum myriostigma fruit is 2 cm to 2.5 cm in diameter, greenish to roasted red, covered with brown overlapping scales, with long wool in the armpit.
The seeds are dark brown, helmet-shaped, shiny.
Some daring, even graft this cactus.