Among what looks like it could be lambs wool appears this tiny flower. Only lasting a day it is a joy to view. One has to really take a look to see these little flowers on this cactus as they are quite small, only about 1.5 inches across. The flowers are not very visible in relation with the size of the barrel, and they can get lost into the creamy colored wool at the top of the globe. But they are quite unique. One could almost think that this is some underwater kind of sea life but it is just a simple flower here in bloom in the spring in the Arizona Sonoran Desert. Photograph was taken of this bloom of the Golden Barrel Cactus only a few steps out my front door.
Camera Fujifilm X-T1
Echinocactus grusonii, popularly known as the Golden Barrel Cactus, Golden Ball or, amusingly, Mother-in-Law’s Cushion, is a well known species of cactus, and is endemic to east-central Mexico.
It is rare and critically endangered in the wild, where it is found near Mesa de LÃ©on in the state of QuerÃ©taro, and in the state of Hidalgo.1 The population was critically reduced in the 1990s, by the creation of the ZimapÃ¡n Dam and reservoir in Hidalgo.1 The cactus grows in volcanic rock on slopes, at altitudes around 1,400 metres (4,600 ft). Echinocactus grusonii belongs to the small genus Echinocactus, which together with the related genus Ferocactus, are commonly referred to as barrel cacti. The species was first described by Heinrich Hildmann in 1891. While sometimes referred to as Golden Ball, this species is not to be confused with Notocactus leninghausii which have fuzzy, harmless spines and are native to Brazil and Paraguay.Growing as a large roughly spherical globe, Echinocactus grusonii may eventually reach over 1 metre (3.3 ft) in height after many years. Younger Golden Barrel plants do not look similar to mature specimens. The generation lifetime is estimated to be 30 years. 1
There may be up to 35 pronounced ribs in mature plants, though they are not evident in young plants, which may have a knobbly appearance. The sharp spines are long, straight or slightly curved, and various shades of yellow or, occasionally, white.
Small yellow flowers appear in summer around the crown of the plant, but only after twenty years or so. Echinocactus grusonii is widely cultivated by specialty plant nurseries as an ornamental plant, for planting in containers, desert habitat gardens, rock gardens, and in conservatories. 2 A white-spined form, and a short-spined form, are also in cultivation.
It is one of the most popular cacti in cultivation. Garden designers Madame Ganna Walska of Lotusland in Montecito, California, and Jamie Durie of Australia, have considered it a personal favorite. It has increasingly become popular as an architectural accent plant in contemporary garden designs.
The cactus is considered easy and relatively fast growing in warmer climates around the world. The plants do have some basic requirements; an average minimum winter temperature of 12Â°C (53.6ÂºF); and good drainage with less watering in winter. 2 Excess water in cool periods may lead to rot. Golden Barrels are hardy to about 15ÂºF (-8ÂºC) for brief periods.
Beyond Central Mexico, Echinocactus grusonii specimens may also be seen in collections of desert plants in many botanical gardens.
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